mirror of https://github.com/k3d-io/k3d
parent
8278e8d20b
commit
08f7a47119
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/* |
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Copyright © 2020 The k3d Author(s) |
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Permission is hereby granted, free of charge, to any person obtaining a copy |
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of this software and associated documentation files (the "Software"), to deal |
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in the Software without restriction, including without limitation the rights |
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to use, copy, modify, merge, publish, distribute, sublicense, and/or sell |
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copies of the Software, and to permit persons to whom the Software is |
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furnished to do so, subject to the following conditions: |
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|
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The above copyright notice and this permission notice shall be included in |
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all copies or substantial portions of the Software. |
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
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IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
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FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE |
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AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER |
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LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, |
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OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN |
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THE SOFTWARE. |
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*/ |
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package cluster |
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import ( |
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log "github.com/sirupsen/logrus" |
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"github.com/spf13/cobra" |
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) |
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// NewCmdCluster returns a new cobra command
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func NewCmdCluster() *cobra.Command { |
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// create new cobra command
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cmd := &cobra.Command{ |
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Use: "cluster", |
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Short: "Manage cluster(s)", |
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Long: `Manage cluster(s)`, |
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Run: func(cmd *cobra.Command, args []string) { |
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if err := cmd.Help(); err != nil { |
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log.Errorln("Couldn't get help text") |
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log.Fatalln(err) |
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} |
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}, |
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} |
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// add subcommands
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cmd.AddCommand(NewCmdClusterCreate()) |
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cmd.AddCommand(NewCmdClusterDelete()) |
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cmd.AddCommand(NewCmdClusterList()) |
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// add flags
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// done
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return cmd |
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} |
@ -0,0 +1,408 @@ |
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/* |
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Copyright © 2020 The k3d Author(s) |
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Permission is hereby granted, free of charge, to any person obtaining a copy |
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|
of this software and associated documentation files (the "Software"), to deal |
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|
in the Software without restriction, including without limitation the rights |
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|
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell |
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|
copies of the Software, and to permit persons to whom the Software is |
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|
furnished to do so, subject to the following conditions: |
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|
|
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The above copyright notice and this permission notice shall be included in |
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all copies or substantial portions of the Software. |
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|
|
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
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|
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
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|
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE |
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AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER |
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|
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, |
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OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN |
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THE SOFTWARE. |
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*/ |
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package cluster |
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import ( |
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"fmt" |
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"os" |
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"runtime" |
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"time" |
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"github.com/spf13/cobra" |
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cliutil "github.com/rancher/k3d/v3/cmd/util" |
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"github.com/rancher/k3d/v3/pkg/cluster" |
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k3dCluster "github.com/rancher/k3d/v3/pkg/cluster" |
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"github.com/rancher/k3d/v3/pkg/runtimes" |
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k3d "github.com/rancher/k3d/v3/pkg/types" |
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"github.com/rancher/k3d/v3/version" |
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log "github.com/sirupsen/logrus" |
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) |
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const clusterCreateDescription = ` |
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Create a new k3s cluster with containerized nodes (k3s in docker). |
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Every cluster will consist of at least 2 containers: |
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- 1 master node container (k3s) |
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- 1 loadbalancer container as the entrypoint to the cluster (nginx) |
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` |
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// NewCmdClusterCreate returns a new cobra command
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func NewCmdClusterCreate() *cobra.Command { |
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createClusterOpts := &k3d.CreateClusterOpts{} |
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var updateKubeconfig, updateCurrentContext bool |
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// create new command
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cmd := &cobra.Command{ |
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Use: "create NAME", |
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Short: "Create a new cluster", |
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Long: clusterCreateDescription, |
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Args: cobra.RangeArgs(0, 1), // exactly one cluster name can be set (default: k3d.DefaultClusterName)
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Run: func(cmd *cobra.Command, args []string) { |
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// parse args and flags
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cluster := parseCreateClusterCmd(cmd, args, createClusterOpts) |
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// check if a cluster with that name exists already
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if _, err := k3dCluster.GetCluster(cmd.Context(), runtimes.SelectedRuntime, cluster); err == nil { |
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log.Fatalf("Failed to create cluster '%s' because a cluster with that name already exists", cluster.Name) |
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} |
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// create cluster
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if updateKubeconfig || updateCurrentContext { |
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log.Debugln("'--update-kubeconfig set: enabling wait-for-master") |
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cluster.CreateClusterOpts.WaitForMaster = true |
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} |
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if err := k3dCluster.CreateCluster(cmd.Context(), runtimes.SelectedRuntime, cluster); err != nil { |
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// rollback if creation failed
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log.Errorln(err) |
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log.Errorln("Failed to create cluster >>> Rolling Back") |
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if err := k3dCluster.DeleteCluster(cmd.Context(), runtimes.SelectedRuntime, cluster); err != nil { |
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log.Errorln(err) |
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log.Fatalln("Cluster creation FAILED, also FAILED to rollback changes!") |
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} |
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log.Fatalln("Cluster creation FAILED, all changes have been rolled back!") |
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} |
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log.Infof("Cluster '%s' created successfully!", cluster.Name) |
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if updateKubeconfig || updateCurrentContext { |
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log.Debugf("Updating default kubeconfig with a new context for cluster %s", cluster.Name) |
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if _, err := k3dCluster.GetAndWriteKubeConfig(cmd.Context(), runtimes.SelectedRuntime, cluster, "", &k3dCluster.WriteKubeConfigOptions{UpdateExisting: true, OverwriteExisting: false, UpdateCurrentContext: updateCurrentContext}); err != nil { |
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log.Fatalln(err) |
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} |
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} |
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// print information on how to use the cluster with kubectl
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log.Infoln("You can now use it like this:") |
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if updateKubeconfig && !updateCurrentContext { |
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fmt.Printf("kubectl config use-context %s\n", fmt.Sprintf("%s-%s", k3d.DefaultObjectNamePrefix, cluster.Name)) |
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} else if !updateCurrentContext { |
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if runtime.GOOS == "windows" { |
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fmt.Printf("$env:KUBECONFIG=(%s get kubeconfig %s)\n", os.Args[0], cluster.Name) |
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} else { |
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fmt.Printf("export KUBECONFIG=$(%s get kubeconfig %s)\n", os.Args[0], cluster.Name) |
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} |
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} |
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fmt.Println("kubectl cluster-info") |
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}, |
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} |
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/********* |
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* Flags * |
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*********/ |
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cmd.Flags().StringP("api-port", "a", "random", "Specify the Kubernetes API server port exposed on the LoadBalancer (Format: `--api-port [HOST:]HOSTPORT`)\n - Example: `k3d create -m 3 -a 0.0.0.0:6550`") |
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cmd.Flags().IntP("masters", "m", 1, "Specify how many masters you want to create") |
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cmd.Flags().IntP("workers", "w", 0, "Specify how many workers you want to create") |
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cmd.Flags().StringP("image", "i", fmt.Sprintf("%s:%s", k3d.DefaultK3sImageRepo, version.GetK3sVersion(false)), "Specify k3s image that you want to use for the nodes") |
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cmd.Flags().String("network", "", "Join an existing network") |
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cmd.Flags().String("token", "", "Specify a cluster token. By default, we generate one.") |
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cmd.Flags().StringArrayP("volume", "v", nil, "Mount volumes into the nodes (Format: `--volume [SOURCE:]DEST[@NODEFILTER[;NODEFILTER...]]`\n - Example: `k3d create -w 2 -v /my/path@worker[0,1] -v /tmp/test:/tmp/other@master[0]`") |
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cmd.Flags().StringArrayP("port", "p", nil, "Map ports from the node containers to the host (Format: `[HOST:][HOSTPORT:]CONTAINERPORT[/PROTOCOL][@NODEFILTER]`)\n - Example: `k3d create -w 2 -p 8080:80@worker[0] -p 8081@worker[1]`") |
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cmd.Flags().BoolVar(&createClusterOpts.WaitForMaster, "wait", true, "Wait for the master(s) to be ready before returning. Use '--timeout DURATION' to not wait forever.") |
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cmd.Flags().DurationVar(&createClusterOpts.Timeout, "timeout", 0*time.Second, "Rollback changes if cluster couldn't be created in specified duration.") |
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cmd.Flags().BoolVar(&updateKubeconfig, "update-kubeconfig", false, "Directly update the default kubeconfig with the new cluster's context") |
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cmd.Flags().BoolVar(&updateCurrentContext, "switch", false, "Directly switch the default kubeconfig's current-context to the new cluster's context (implies --update-kubeconfig)") |
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cmd.Flags().BoolVar(&createClusterOpts.DisableLoadBalancer, "no-lb", false, "Disable the creation of a LoadBalancer in front of the master nodes") |
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/* Image Importing */ |
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cmd.Flags().BoolVar(&createClusterOpts.DisableImageVolume, "no-image-volume", false, "Disable the creation of a volume for importing images") |
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/* Multi Master Configuration */ |
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// multi-master - datastore
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// TODO: implement multi-master setups with external data store
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// cmd.Flags().String("datastore-endpoint", "", "[WIP] Specify external datastore endpoint (e.g. for multi master clusters)")
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/* |
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cmd.Flags().String("datastore-network", "", "Specify container network where we can find the datastore-endpoint (add a connection)") |
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// TODO: set default paths and hint, that one should simply mount the files using --volume flag
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cmd.Flags().String("datastore-cafile", "", "Specify external datastore's TLS Certificate Authority (CA) file") |
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cmd.Flags().String("datastore-certfile", "", "Specify external datastore's TLS certificate file'") |
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cmd.Flags().String("datastore-keyfile", "", "Specify external datastore's TLS key file'") |
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*/ |
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/* k3s */ |
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cmd.Flags().StringArrayVar(&createClusterOpts.K3sServerArgs, "k3s-server-arg", nil, "Additional args passed to the `k3s server` command on master nodes (new flag per arg)") |
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cmd.Flags().StringArrayVar(&createClusterOpts.K3sAgentArgs, "k3s-agent-arg", nil, "Additional args passed to the `k3s agent` command on worker nodes (new flag per arg)") |
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/* Subcommands */ |
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// done
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return cmd |
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} |
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// parseCreateClusterCmd parses the command input into variables required to create a cluster
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func parseCreateClusterCmd(cmd *cobra.Command, args []string, createClusterOpts *k3d.CreateClusterOpts) *k3d.Cluster { |
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/******************************** |
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* Parse and validate arguments * |
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********************************/ |
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clustername := k3d.DefaultClusterName |
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if len(args) != 0 { |
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clustername = args[0] |
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} |
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if err := cluster.CheckName(clustername); err != nil { |
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log.Fatal(err) |
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} |
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/**************************** |
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* Parse and validate flags * |
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****************************/ |
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// --image
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image, err := cmd.Flags().GetString("image") |
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if err != nil { |
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log.Errorln("No image specified") |
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log.Fatalln(err) |
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} |
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if image == "latest" { |
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image = version.GetK3sVersion(true) |
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} |
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// --masters
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masterCount, err := cmd.Flags().GetInt("masters") |
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if err != nil { |
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log.Fatalln(err) |
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} |
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// --workers
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workerCount, err := cmd.Flags().GetInt("workers") |
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if err != nil { |
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log.Fatalln(err) |
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} |
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// --network
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networkName, err := cmd.Flags().GetString("network") |
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if err != nil { |
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log.Fatalln(err) |
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} |
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network := k3d.ClusterNetwork{} |
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if networkName != "" { |
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network.Name = networkName |
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network.External = true |
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} |
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if networkName == "host" && (masterCount+workerCount) > 1 { |
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log.Fatalln("Can only run a single node in hostnetwork mode") |
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} |
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// --token
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token, err := cmd.Flags().GetString("token") |
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if err != nil { |
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log.Fatalln(err) |
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} |
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// --timeout
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if cmd.Flags().Changed("timeout") && createClusterOpts.Timeout <= 0*time.Second { |
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log.Fatalln("--timeout DURATION must be >= 1s") |
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} |
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// --api-port
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apiPort, err := cmd.Flags().GetString("api-port") |
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if err != nil { |
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log.Fatalln(err) |
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} |
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// parse the port mapping
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exposeAPI, err := cliutil.ParseAPIPort(apiPort) |
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if err != nil { |
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log.Fatalln(err) |
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} |
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if exposeAPI.Host == "" { |
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exposeAPI.Host = k3d.DefaultAPIHost |
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} |
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if exposeAPI.HostIP == "" { |
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exposeAPI.HostIP = k3d.DefaultAPIHost |
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} |
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if networkName == "host" { |
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// in hostNetwork mode, we're not going to map a hostport. Here it should always use 6443.
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// Note that hostNetwork mode is super inflexible and since we don't change the backend port (on the container), it will only be one hostmode cluster allowed.
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exposeAPI.Port = k3d.DefaultAPIPort |
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} |
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// --volume
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volumeFlags, err := cmd.Flags().GetStringArray("volume") |
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if err != nil { |
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log.Fatalln(err) |
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} |
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// volumeFilterMap will map volume mounts to applied node filters
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volumeFilterMap := make(map[string][]string, 1) |
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for _, volumeFlag := range volumeFlags { |
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// split node filter from the specified volume
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volume, filters, err := cliutil.SplitFiltersFromFlag(volumeFlag) |
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if err != nil { |
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log.Fatalln(err) |
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} |
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// validate the specified volume mount and return it in SRC:DEST format
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volume, err = cliutil.ValidateVolumeMount(runtimes.SelectedRuntime, volume) |
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if err != nil { |
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log.Fatalln(err) |
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} |
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// create new entry or append filter to existing entry
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if _, exists := volumeFilterMap[volume]; exists { |
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volumeFilterMap[volume] = append(volumeFilterMap[volume], filters...) |
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} else { |
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volumeFilterMap[volume] = filters |
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} |
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} |
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// --port
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portFlags, err := cmd.Flags().GetStringArray("port") |
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if err != nil { |
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log.Fatalln(err) |
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} |
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portFilterMap := make(map[string][]string, 1) |
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for _, portFlag := range portFlags { |
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// split node filter from the specified volume
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portmap, filters, err := cliutil.SplitFiltersFromFlag(portFlag) |
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if err != nil { |
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log.Fatalln(err) |
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} |
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if len(filters) > 1 { |
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log.Fatalln("Can only apply a Portmap to one node") |
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} |
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// the same portmapping can't be applied to multiple nodes
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// validate the specified volume mount and return it in SRC:DEST format
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portmap, err = cliutil.ValidatePortMap(portmap) |
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if err != nil { |
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log.Fatalln(err) |
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} |
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// create new entry or append filter to existing entry
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if _, exists := portFilterMap[portmap]; exists { |
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log.Fatalln("Same Portmapping can not be used for multiple nodes") |
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} else { |
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portFilterMap[portmap] = filters |
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} |
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} |
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log.Debugf("PortFilterMap: %+v", portFilterMap) |
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/******************** |
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* * |
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* generate cluster * |
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* * |
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********************/ |
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cluster := &k3d.Cluster{ |
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Name: clustername, |
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Network: network, |
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Token: token, |
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CreateClusterOpts: createClusterOpts, |
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ExposeAPI: exposeAPI, |
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} |
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// generate list of nodes
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cluster.Nodes = []*k3d.Node{} |
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// MasterLoadBalancer
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if !createClusterOpts.DisableLoadBalancer { |
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cluster.MasterLoadBalancer = &k3d.Node{ |
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Role: k3d.LoadBalancerRole, |
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} |
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} |
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/**************** |
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* Master Nodes * |
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****************/ |
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||||||
|
for i := 0; i < masterCount; i++ { |
||||||
|
node := k3d.Node{ |
||||||
|
Role: k3d.MasterRole, |
||||||
|
Image: image, |
||||||
|
Args: createClusterOpts.K3sServerArgs, |
||||||
|
MasterOpts: k3d.MasterOpts{}, |
||||||
|
} |
||||||
|
|
||||||
|
// TODO: by default, we don't expose an API port: should we change that?
|
||||||
|
// -> if we want to change that, simply add the exposeAPI struct here
|
||||||
|
|
||||||
|
// first master node will be init node if we have more than one master specified but no external datastore
|
||||||
|
if i == 0 && masterCount > 1 { |
||||||
|
node.MasterOpts.IsInit = true |
||||||
|
cluster.InitNode = &node |
||||||
|
} |
||||||
|
|
||||||
|
// append node to list
|
||||||
|
cluster.Nodes = append(cluster.Nodes, &node) |
||||||
|
} |
||||||
|
|
||||||
|
/**************** |
||||||
|
* Worker Nodes * |
||||||
|
****************/ |
||||||
|
|
||||||
|
for i := 0; i < workerCount; i++ { |
||||||
|
node := k3d.Node{ |
||||||
|
Role: k3d.WorkerRole, |
||||||
|
Image: image, |
||||||
|
Args: createClusterOpts.K3sAgentArgs, |
||||||
|
} |
||||||
|
|
||||||
|
cluster.Nodes = append(cluster.Nodes, &node) |
||||||
|
} |
||||||
|
|
||||||
|
// append volumes
|
||||||
|
for volume, filters := range volumeFilterMap { |
||||||
|
nodes, err := cliutil.FilterNodes(cluster.Nodes, filters) |
||||||
|
if err != nil { |
||||||
|
log.Fatalln(err) |
||||||
|
} |
||||||
|
for _, node := range nodes { |
||||||
|
node.Volumes = append(node.Volumes, volume) |
||||||
|
} |
||||||
|
} |
||||||
|
|
||||||
|
// append ports
|
||||||
|
nodeCount := masterCount + workerCount |
||||||
|
nodeList := cluster.Nodes |
||||||
|
if !createClusterOpts.DisableLoadBalancer { |
||||||
|
nodeCount++ |
||||||
|
nodeList = append(nodeList, cluster.MasterLoadBalancer) |
||||||
|
} |
||||||
|
for portmap, filters := range portFilterMap { |
||||||
|
if len(filters) == 0 && (nodeCount) > 1 { |
||||||
|
log.Fatalf("Malformed portmapping '%s' lacks a node filter, but there is more than one node (including the loadbalancer, if there is any).", portmap) |
||||||
|
} |
||||||
|
nodes, err := cliutil.FilterNodes(nodeList, filters) |
||||||
|
if err != nil { |
||||||
|
log.Fatalln(err) |
||||||
|
} |
||||||
|
for _, node := range nodes { |
||||||
|
node.Ports = append(node.Ports, portmap) |
||||||
|
} |
||||||
|
} |
||||||
|
|
||||||
|
/********************** |
||||||
|
* Utility Containers * |
||||||
|
**********************/ |
||||||
|
// ...
|
||||||
|
|
||||||
|
return cluster |
||||||
|
} |
@ -0,0 +1,106 @@ |
|||||||
|
/* |
||||||
|
Copyright © 2020 The k3d Author(s) |
||||||
|
|
||||||
|
Permission is hereby granted, free of charge, to any person obtaining a copy |
||||||
|
of this software and associated documentation files (the "Software"), to deal |
||||||
|
in the Software without restriction, including without limitation the rights |
||||||
|
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell |
||||||
|
copies of the Software, and to permit persons to whom the Software is |
||||||
|
furnished to do so, subject to the following conditions: |
||||||
|
|
||||||
|
The above copyright notice and this permission notice shall be included in |
||||||
|
all copies or substantial portions of the Software. |
||||||
|
|
||||||
|
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
||||||
|
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
||||||
|
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE |
||||||
|
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER |
||||||
|
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, |
||||||
|
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN |
||||||
|
THE SOFTWARE. |
||||||
|
*/ |
||||||
|
package cluster |
||||||
|
|
||||||
|
import ( |
||||||
|
"github.com/rancher/k3d/v3/cmd/util" |
||||||
|
"github.com/rancher/k3d/v3/pkg/cluster" |
||||||
|
"github.com/rancher/k3d/v3/pkg/runtimes" |
||||||
|
k3d "github.com/rancher/k3d/v3/pkg/types" |
||||||
|
log "github.com/sirupsen/logrus" |
||||||
|
|
||||||
|
"github.com/spf13/cobra" |
||||||
|
) |
||||||
|
|
||||||
|
// NewCmdClusterDelete returns a new cobra command
|
||||||
|
func NewCmdClusterDelete() *cobra.Command { |
||||||
|
|
||||||
|
// create new cobra command
|
||||||
|
cmd := &cobra.Command{ |
||||||
|
Use: "delete (NAME | --all)", |
||||||
|
Aliases: []string{"del", "rm"}, |
||||||
|
Short: "Delete cluster(s).", |
||||||
|
Long: `Delete cluster(s).`, |
||||||
|
Args: cobra.MinimumNArgs(0), // 0 or n arguments; 0 only if --all is set
|
||||||
|
ValidArgsFunction: util.ValidArgsAvailableClusters, |
||||||
|
Run: func(cmd *cobra.Command, args []string) { |
||||||
|
clusters := parseDeleteClusterCmd(cmd, args) |
||||||
|
|
||||||
|
if len(clusters) == 0 { |
||||||
|
log.Infoln("No clusters found") |
||||||
|
} else { |
||||||
|
for _, c := range clusters { |
||||||
|
if err := cluster.DeleteCluster(cmd.Context(), runtimes.SelectedRuntime, c); err != nil { |
||||||
|
log.Fatalln(err) |
||||||
|
} |
||||||
|
log.Infoln("Removing cluster details from default kubeconfig") |
||||||
|
if err := cluster.RemoveClusterFromDefaultKubeConfig(cmd.Context(), c); err != nil { |
||||||
|
log.Warnln("Failed to remove cluster details from default kubeconfig") |
||||||
|
log.Warnln(err) |
||||||
|
} |
||||||
|
|
||||||
|
log.Infof("Successfully deleted cluster %s!", c.Name) |
||||||
|
} |
||||||
|
} |
||||||
|
|
||||||
|
}, |
||||||
|
} |
||||||
|
|
||||||
|
// add subcommands
|
||||||
|
|
||||||
|
// add flags
|
||||||
|
cmd.Flags().BoolP("all", "a", false, "Delete all existing clusters") |
||||||
|
|
||||||
|
// done
|
||||||
|
return cmd |
||||||
|
} |
||||||
|
|
||||||
|
// parseDeleteClusterCmd parses the command input into variables required to delete clusters
|
||||||
|
func parseDeleteClusterCmd(cmd *cobra.Command, args []string) []*k3d.Cluster { |
||||||
|
|
||||||
|
// --all
|
||||||
|
var clusters []*k3d.Cluster |
||||||
|
|
||||||
|
if all, err := cmd.Flags().GetBool("all"); err != nil { |
||||||
|
log.Fatalln(err) |
||||||
|
} else if all { |
||||||
|
clusters, err = cluster.GetClusters(cmd.Context(), runtimes.SelectedRuntime) |
||||||
|
if err != nil { |
||||||
|
log.Fatalln(err) |
||||||
|
} |
||||||
|
return clusters |
||||||
|
} |
||||||
|
|
||||||
|
if len(args) < 1 { |
||||||
|
log.Fatalln("Expecting at least one cluster name if `--all` is not set") |
||||||
|
} |
||||||
|
|
||||||
|
for _, name := range args { |
||||||
|
cluster, err := cluster.GetCluster(cmd.Context(), runtimes.SelectedRuntime, &k3d.Cluster{Name: name}) |
||||||
|
if err != nil { |
||||||
|
log.Fatalln(err) |
||||||
|
} |
||||||
|
clusters = append(clusters, cluster) |
||||||
|
} |
||||||
|
|
||||||
|
return clusters |
||||||
|
} |
@ -0,0 +1,128 @@ |
|||||||
|
/* |
||||||
|
Copyright © 2020 The k3d Author(s) |
||||||
|
|
||||||
|
Permission is hereby granted, free of charge, to any person obtaining a copy |
||||||
|
of this software and associated documentation files (the "Software"), to deal |
||||||
|
in the Software without restriction, including without limitation the rights |
||||||
|
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell |
||||||
|
copies of the Software, and to permit persons to whom the Software is |
||||||
|
furnished to do so, subject to the following conditions: |
||||||
|
|
||||||
|
The above copyright notice and this permission notice shall be included in |
||||||
|
all copies or substantial portions of the Software. |
||||||
|
|
||||||
|
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
||||||
|
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
||||||
|
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE |
||||||
|
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER |
||||||
|
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, |
||||||
|
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN |
||||||
|
THE SOFTWARE. |
||||||
|
*/ |
||||||
|
package cluster |
||||||
|
|
||||||
|
import ( |
||||||
|
"context" |
||||||
|
"fmt" |
||||||
|
"os" |
||||||
|
"strings" |
||||||
|
|
||||||
|
"github.com/rancher/k3d/v3/cmd/util" |
||||||
|
k3cluster "github.com/rancher/k3d/v3/pkg/cluster" |
||||||
|
"github.com/rancher/k3d/v3/pkg/runtimes" |
||||||
|
k3d "github.com/rancher/k3d/v3/pkg/types" |
||||||
|
"github.com/spf13/cobra" |
||||||
|
|
||||||
|
log "github.com/sirupsen/logrus" |
||||||
|
|
||||||
|
"github.com/liggitt/tabwriter" |
||||||
|
) |
||||||
|
|
||||||
|
// TODO : deal with --all flag to manage differentiate started cluster and stopped cluster like `docker ps` and `docker ps -a`
|
||||||
|
type clusterFlags struct { |
||||||
|
noHeader bool |
||||||
|
token bool |
||||||
|
} |
||||||
|
|
||||||
|
// NewCmdClusterList returns a new cobra command
|
||||||
|
func NewCmdClusterList() *cobra.Command { |
||||||
|
|
||||||
|
clusterFlags := clusterFlags{} |
||||||
|
|
||||||
|
// create new command
|
||||||
|
cmd := &cobra.Command{ |
||||||
|
Use: "list [NAME [NAME...]]", |
||||||
|
Aliases: []string{"ls", "get"}, |
||||||
|
Short: "List cluster(s)", |
||||||
|
Long: `List cluster(s).`, |
||||||
|
Run: func(cmd *cobra.Command, args []string) { |
||||||
|
clusters := buildClusterList(cmd.Context(), args) |
||||||
|
PrintClusters(clusters, clusterFlags) |
||||||
|
}, |
||||||
|
ValidArgsFunction: util.ValidArgsAvailableClusters, |
||||||
|
} |
||||||
|
|
||||||
|
// add flags
|
||||||
|
cmd.Flags().BoolVar(&clusterFlags.noHeader, "no-headers", false, "Disable headers") |
||||||
|
cmd.Flags().BoolVar(&clusterFlags.token, "token", false, "Print k3s cluster token") |
||||||
|
|
||||||
|
// add subcommands
|
||||||
|
|
||||||
|
// done
|
||||||
|
return cmd |
||||||
|
} |
||||||
|
|
||||||
|
func buildClusterList(ctx context.Context, args []string) []*k3d.Cluster { |
||||||
|
var clusters []*k3d.Cluster |
||||||
|
var err error |
||||||
|
|
||||||
|
if len(args) == 0 { |
||||||
|
// cluster name not specified : get all clusters
|
||||||
|
clusters, err = k3cluster.GetClusters(ctx, runtimes.SelectedRuntime) |
||||||
|
if err != nil { |
||||||
|
log.Fatalln(err) |
||||||
|
} |
||||||
|
} else { |
||||||
|
for _, clusterName := range args { |
||||||
|
// cluster name specified : get specific cluster
|
||||||
|
retrievedCluster, err := k3cluster.GetCluster(ctx, runtimes.SelectedRuntime, &k3d.Cluster{Name: clusterName}) |
||||||
|
if err != nil { |
||||||
|
log.Fatalln(err) |
||||||
|
} |
||||||
|
clusters = append(clusters, retrievedCluster) |
||||||
|
} |
||||||
|
} |
||||||
|
|
||||||
|
return clusters |
||||||
|
} |
||||||
|
|
||||||
|
// PrintPrintClusters : display list of cluster
|
||||||
|
func PrintClusters(clusters []*k3d.Cluster, flags clusterFlags) { |
||||||
|
|
||||||
|
tabwriter := tabwriter.NewWriter(os.Stdout, 6, 4, 3, ' ', tabwriter.RememberWidths) |
||||||
|
defer tabwriter.Flush() |
||||||
|
|
||||||
|
if !flags.noHeader { |
||||||
|
headers := []string{"NAME", "MASTERS", "WORKERS"} // TODO: getCluster: add status column
|
||||||
|
if flags.token { |
||||||
|
headers = append(headers, "TOKEN") |
||||||
|
} |
||||||
|
_, err := fmt.Fprintf(tabwriter, "%s\n", strings.Join(headers, "\t")) |
||||||
|
if err != nil { |
||||||
|
log.Fatalln("Failed to print headers") |
||||||
|
} |
||||||
|
} |
||||||
|
|
||||||
|
k3cluster.SortClusters(clusters) |
||||||
|
|
||||||
|
for _, cluster := range clusters { |
||||||
|
masterCount := cluster.MasterCount() |
||||||
|
workerCount := cluster.WorkerCount() |
||||||
|
|
||||||
|
if flags.token { |
||||||
|
fmt.Fprintf(tabwriter, "%s\t%d\t%d\t%s\n", cluster.Name, masterCount, workerCount, cluster.Token) |
||||||
|
} else { |
||||||
|
fmt.Fprintf(tabwriter, "%s\t%d\t%d\n", cluster.Name, masterCount, workerCount) |
||||||
|
} |
||||||
|
} |
||||||
|
} |
@ -0,0 +1,53 @@ |
|||||||
|
/* |
||||||
|
Copyright © 2020 The k3d Author(s) |
||||||
|
|
||||||
|
Permission is hereby granted, free of charge, to any person obtaining a copy |
||||||
|
of this software and associated documentation files (the "Software"), to deal |
||||||
|
in the Software without restriction, including without limitation the rights |
||||||
|
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell |
||||||
|
copies of the Software, and to permit persons to whom the Software is |
||||||
|
furnished to do so, subject to the following conditions: |
||||||
|
|
||||||
|
The above copyright notice and this permission notice shall be included in |
||||||
|
all copies or substantial portions of the Software. |
||||||
|
|
||||||
|
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
||||||
|
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
||||||
|
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE |
||||||
|
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER |
||||||
|
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, |
||||||
|
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN |
||||||
|
THE SOFTWARE. |
||||||
|
*/ |
||||||
|
package kubeconfig |
||||||
|
|
||||||
|
import ( |
||||||
|
log "github.com/sirupsen/logrus" |
||||||
|
"github.com/spf13/cobra" |
||||||
|
) |
||||||
|
|
||||||
|
// NewCmdKubeconfig returns a new cobra command
|
||||||
|
func NewCmdKubeconfig() *cobra.Command { |
||||||
|
|
||||||
|
// create new cobra command
|
||||||
|
cmd := &cobra.Command{ |
||||||
|
Use: "kubeconfig", |
||||||
|
Short: "Manage kubeconfig(s)", |
||||||
|
Long: `Manage kubeconfig(s)`, |
||||||
|
Run: func(cmd *cobra.Command, args []string) { |
||||||
|
if err := cmd.Help(); err != nil { |
||||||
|
log.Errorln("Couldn't get help text") |
||||||
|
log.Fatalln(err) |
||||||
|
} |
||||||
|
}, |
||||||
|
} |
||||||
|
|
||||||
|
// add subcommands
|
||||||
|
cmd.AddCommand(NewCmdKubeconfigGet()) |
||||||
|
cmd.AddCommand(NewCmdKubeconfigMerge()) |
||||||
|
|
||||||
|
// add flags
|
||||||
|
|
||||||
|
// done
|
||||||
|
return cmd |
||||||
|
} |
@ -0,0 +1,107 @@ |
|||||||
|
/* |
||||||
|
Copyright © 2020 The k3d Author(s) |
||||||
|
|
||||||
|
Permission is hereby granted, free of charge, to any person obtaining a copy |
||||||
|
of this software and associated documentation files (the "Software"), to deal |
||||||
|
in the Software without restriction, including without limitation the rights |
||||||
|
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell |
||||||
|
copies of the Software, and to permit persons to whom the Software is |
||||||
|
furnished to do so, subject to the following conditions: |
||||||
|
|
||||||
|
The above copyright notice and this permission notice shall be included in |
||||||
|
all copies or substantial portions of the Software. |
||||||
|
|
||||||
|
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
||||||
|
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
||||||
|
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE |
||||||
|
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER |
||||||
|
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, |
||||||
|
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN |
||||||
|
THE SOFTWARE. |
||||||
|
*/ |
||||||
|
package kubeconfig |
||||||
|
|
||||||
|
import ( |
||||||
|
"fmt" |
||||||
|
"os" |
||||||
|
|
||||||
|
"github.com/rancher/k3d/v3/cmd/util" |
||||||
|
"github.com/rancher/k3d/v3/pkg/cluster" |
||||||
|
"github.com/rancher/k3d/v3/pkg/runtimes" |
||||||
|
k3d "github.com/rancher/k3d/v3/pkg/types" |
||||||
|
"github.com/spf13/cobra" |
||||||
|
|
||||||
|
log "github.com/sirupsen/logrus" |
||||||
|
) |
||||||
|
|
||||||
|
type getKubeconfigFlags struct { |
||||||
|
all bool |
||||||
|
} |
||||||
|
|
||||||
|
// NewCmdKubeconfigGet returns a new cobra command
|
||||||
|
func NewCmdKubeconfigGet() *cobra.Command { |
||||||
|
|
||||||
|
writeKubeConfigOptions := cluster.WriteKubeConfigOptions{ |
||||||
|
UpdateExisting: true, |
||||||
|
UpdateCurrentContext: true, |
||||||
|
OverwriteExisting: true, |
||||||
|
} |
||||||
|
|
||||||
|
getKubeconfigFlags := getKubeconfigFlags{} |
||||||
|
|
||||||
|
// create new command
|
||||||
|
cmd := &cobra.Command{ |
||||||
|
Use: "get [CLUSTER [CLUSTER [...]] | --all]", |
||||||
|
Short: "Get kubeconfig from cluster(s).", |
||||||
|
Long: `Get kubeconfig from cluster(s).`, |
||||||
|
ValidArgsFunction: util.ValidArgsAvailableClusters, |
||||||
|
Args: func(cmd *cobra.Command, args []string) error { |
||||||
|
if (len(args) < 1 && !getKubeconfigFlags.all) || (len(args) > 0 && getKubeconfigFlags.all) { |
||||||
|
return fmt.Errorf("Need to specify one or more cluster names *or* set `--all` flag") |
||||||
|
} |
||||||
|
return nil |
||||||
|
}, |
||||||
|
Run: func(cmd *cobra.Command, args []string) { |
||||||
|
var clusters []*k3d.Cluster |
||||||
|
var err error |
||||||
|
|
||||||
|
// generate list of clusters
|
||||||
|
if getKubeconfigFlags.all { |
||||||
|
clusters, err = cluster.GetClusters(cmd.Context(), runtimes.SelectedRuntime) |
||||||
|
if err != nil { |
||||||
|
log.Fatalln(err) |
||||||
|
} |
||||||
|
} else { |
||||||
|
for _, clusterName := range args { |
||||||
|
retrievedCluster, err := cluster.GetCluster(cmd.Context(), runtimes.SelectedRuntime, &k3d.Cluster{Name: clusterName}) |
||||||
|
if err != nil { |
||||||
|
log.Fatalln(err) |
||||||
|
} |
||||||
|
clusters = append(clusters, retrievedCluster) |
||||||
|
} |
||||||
|
} |
||||||
|
|
||||||
|
// get kubeconfigs from all clusters
|
||||||
|
errorGettingKubeconfig := false |
||||||
|
for _, c := range clusters { |
||||||
|
log.Debugf("Getting kubeconfig for cluster '%s'", c.Name) |
||||||
|
fmt.Println("---") // YAML document separator
|
||||||
|
if _, err := cluster.GetAndWriteKubeConfig(cmd.Context(), runtimes.SelectedRuntime, c, "-", &writeKubeConfigOptions); err != nil { |
||||||
|
log.Errorln(err) |
||||||
|
errorGettingKubeconfig = true |
||||||
|
} |
||||||
|
} |
||||||
|
|
||||||
|
// return with non-zero exit code, if there was an error for one of the clusters
|
||||||
|
if errorGettingKubeconfig { |
||||||
|
os.Exit(1) |
||||||
|
} |
||||||
|
}, |
||||||
|
} |
||||||
|
|
||||||
|
// add flags
|
||||||
|
cmd.Flags().BoolVarP(&getKubeconfigFlags.all, "all", "a", false, "Get kubeconfigs from all existing clusters") |
||||||
|
|
||||||
|
// done
|
||||||
|
return cmd |
||||||
|
} |
@ -0,0 +1,116 @@ |
|||||||
|
/* |
||||||
|
Copyright © 2020 The k3d Author(s) |
||||||
|
|
||||||
|
Permission is hereby granted, free of charge, to any person obtaining a copy |
||||||
|
of this software and associated documentation files (the "Software"), to deal |
||||||
|
in the Software without restriction, including without limitation the rights |
||||||
|
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell |
||||||
|
copies of the Software, and to permit persons to whom the Software is |
||||||
|
furnished to do so, subject to the following conditions: |
||||||
|
|
||||||
|
The above copyright notice and this permission notice shall be included in |
||||||
|
all copies or substantial portions of the Software. |
||||||
|
|
||||||
|
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
||||||
|
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
||||||
|
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE |
||||||
|
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER |
||||||
|
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, |
||||||
|
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN |
||||||
|
THE SOFTWARE. |
||||||
|
*/ |
||||||
|
package kubeconfig |
||||||
|
|
||||||
|
import ( |
||||||
|
"fmt" |
||||||
|
"os" |
||||||
|
|
||||||
|
"github.com/rancher/k3d/v3/cmd/util" |
||||||
|
"github.com/rancher/k3d/v3/pkg/cluster" |
||||||
|
"github.com/rancher/k3d/v3/pkg/runtimes" |
||||||
|
k3d "github.com/rancher/k3d/v3/pkg/types" |
||||||
|
"github.com/spf13/cobra" |
||||||
|
"k8s.io/client-go/tools/clientcmd" |
||||||
|
|
||||||
|
log "github.com/sirupsen/logrus" |
||||||
|
) |
||||||
|
|
||||||
|
type mergeKubeconfigFlags struct { |
||||||
|
all bool |
||||||
|
output string |
||||||
|
} |
||||||
|
|
||||||
|
// NewCmdKubeconfigMerge returns a new cobra command
|
||||||
|
func NewCmdKubeconfigMerge() *cobra.Command { |
||||||
|
|
||||||
|
writeKubeConfigOptions := cluster.WriteKubeConfigOptions{} |
||||||
|
|
||||||
|
mergeKubeconfigFlags := mergeKubeconfigFlags{} |
||||||
|
|
||||||
|
// create new command
|
||||||
|
cmd := &cobra.Command{ |
||||||
|
Use: "merge [CLUSTER [CLUSTER [...]] | --all]", |
||||||
|
Long: `Merge kubeconfig from cluster(s) into existing kubeconfig/file.`, |
||||||
|
Short: "Merge kubeconfig from cluster(s) into existing kubeconfig/file.", |
||||||
|
ValidArgsFunction: util.ValidArgsAvailableClusters, |
||||||
|
Args: func(cmd *cobra.Command, args []string) error { |
||||||
|
if (len(args) < 1 && !mergeKubeconfigFlags.all) || (len(args) > 0 && mergeKubeconfigFlags.all) { |
||||||
|
return fmt.Errorf("Need to specify one or more cluster names *or* set `--all` flag") |
||||||
|
} |
||||||
|
return nil |
||||||
|
}, |
||||||
|
Run: func(cmd *cobra.Command, args []string) { |
||||||
|
var clusters []*k3d.Cluster |
||||||
|
var err error |
||||||
|
|
||||||
|
// generate list of clusters
|
||||||
|
if mergeKubeconfigFlags.all { |
||||||
|
clusters, err = cluster.GetClusters(cmd.Context(), runtimes.SelectedRuntime) |
||||||
|
if err != nil { |
||||||
|
log.Fatalln(err) |
||||||
|
} |
||||||
|
} else { |
||||||
|
for _, clusterName := range args { |
||||||
|
retrievedCluster, err := cluster.GetCluster(cmd.Context(), runtimes.SelectedRuntime, &k3d.Cluster{Name: clusterName}) |
||||||
|
if err != nil { |
||||||
|
log.Fatalln(err) |
||||||
|
} |
||||||
|
clusters = append(clusters, retrievedCluster) |
||||||
|
} |
||||||
|
} |
||||||
|
|
||||||
|
// get kubeconfigs from all clusters
|
||||||
|
errorGettingKubeconfig := false |
||||||
|
for _, c := range clusters { |
||||||
|
log.Debugf("Getting kubeconfig for cluster '%s'", c.Name) |
||||||
|
if mergeKubeconfigFlags.output, err = cluster.GetAndWriteKubeConfig(cmd.Context(), runtimes.SelectedRuntime, c, mergeKubeconfigFlags.output, &writeKubeConfigOptions); err != nil { |
||||||
|
log.Errorln(err) |
||||||
|
errorGettingKubeconfig = true |
||||||
|
} |
||||||
|
} |
||||||
|
|
||||||
|
// only print kubeconfig file path if output is not stdout ("-")
|
||||||
|
if mergeKubeconfigFlags.output != "-" { |
||||||
|
fmt.Println(mergeKubeconfigFlags.output) |
||||||
|
} |
||||||
|
|
||||||
|
// return with non-zero exit code, if there was an error for one of the clusters
|
||||||
|
if errorGettingKubeconfig { |
||||||
|
os.Exit(1) |
||||||
|
} |
||||||
|
}, |
||||||
|
} |
||||||
|
|
||||||
|
// add flags
|
||||||
|
cmd.Flags().StringVarP(&mergeKubeconfigFlags.output, "output", "o", "", fmt.Sprintf("Define output [ - | FILE ] (default from $KUBECONFIG or %s", clientcmd.RecommendedHomeFile)) |
||||||
|
if err := cmd.MarkFlagFilename("output"); err != nil { |
||||||
|
log.Fatalln("Failed to mark flag --output as filename") |
||||||
|
} |
||||||
|
cmd.Flags().BoolVarP(&writeKubeConfigOptions.UpdateExisting, "update", "u", true, "Update conflicting fields in existing KubeConfig") |
||||||
|
cmd.Flags().BoolVarP(&writeKubeConfigOptions.UpdateCurrentContext, "switch", "s", false, "Switch to new context") |
||||||
|
cmd.Flags().BoolVar(&writeKubeConfigOptions.OverwriteExisting, "overwrite", false, "[Careful!] Overwrite existing file, ignoring its contents") |
||||||
|
cmd.Flags().BoolVarP(&mergeKubeconfigFlags.all, "all", "a", false, "Get kubeconfigs from all existing clusters") |
||||||
|
|
||||||
|
// done
|
||||||
|
return cmd |
||||||
|
} |
Loading…
Reference in new issue