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120 lines
3.9 KiB
120 lines
3.9 KiB
/*
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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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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 create
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import (
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"fmt"
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"github.com/spf13/cobra"
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k3dc "github.com/rancher/k3d/pkg/cluster"
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"github.com/rancher/k3d/pkg/runtimes"
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k3d "github.com/rancher/k3d/pkg/types"
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"github.com/rancher/k3d/version"
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log "github.com/sirupsen/logrus"
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)
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// NewCmdCreateNode returns a new cobra command
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func NewCmdCreateNode() *cobra.Command {
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// create new command
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cmd := &cobra.Command{
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Use: "node NAME",
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Short: "Create a new k3s node in docker",
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Long: `Create a new containerized k3s node (k3s in docker).`,
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Args: cobra.ExactArgs(1), // exactly one name accepted // TODO: if not specified, inherit from cluster that the node shall belong to, if that is specified
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Run: func(cmd *cobra.Command, args []string) {
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nodes, cluster := parseCreateNodeCmd(cmd, args)
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for _, node := range nodes {
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if err := k3dc.AddNodeToCluster(cmd.Context(), runtimes.SelectedRuntime, node, cluster); err != nil {
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log.Errorf("Failed to add node '%s' to cluster '%s'", node.Name, cluster.Name)
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log.Errorln(err)
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}
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}
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},
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}
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// add flags
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cmd.Flags().Int("replicas", 1, "Number of replicas of this node specification.")
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cmd.Flags().String("role", string(k3d.WorkerRole), "Specify node role [master, worker]")
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cmd.Flags().StringP("cluster", "c", k3d.DefaultClusterName, "Select the cluster that the node shall connect to.")
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if err := cmd.MarkFlagRequired("cluster"); err != nil {
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log.Fatalln("Failed to mark required flag '--cluster'")
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}
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cmd.Flags().StringP("image", "i", fmt.Sprintf("%s:%s", k3d.DefaultK3sImageRepo, version.GetK3sVersion(false)), "Specify k3s image used for the node(s)")
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// done
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return cmd
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}
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// parseCreateNodeCmd parses the command input into variables required to create a cluster
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func parseCreateNodeCmd(cmd *cobra.Command, args []string) ([]*k3d.Node, *k3d.Cluster) {
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// --replicas
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replicas, err := cmd.Flags().GetInt("replicas")
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if err != nil {
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log.Errorln("No replica count specified")
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log.Fatalln(err)
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}
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// --role
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// TODO: createNode: for --role=master, update the nginx config and add TLS-SAN and server connection, etc.
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roleStr, err := cmd.Flags().GetString("role")
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if err != nil {
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log.Errorln("No node role specified")
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log.Fatalln(err)
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}
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if _, ok := k3d.NodeRoles[roleStr]; !ok {
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log.Fatalf("Unknown node role '%s'\n", roleStr)
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}
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role := k3d.NodeRoles[roleStr]
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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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// --cluster
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clusterName, err := cmd.Flags().GetString("cluster")
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if err != nil {
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log.Fatalln(err)
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}
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cluster := &k3d.Cluster{
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Name: clusterName,
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}
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// generate list of nodes
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nodes := []*k3d.Node{}
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for i := 0; i < replicas; i++ {
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node := &k3d.Node{
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Name: fmt.Sprintf("%s-%s-%d", k3d.DefaultObjectNamePrefix, args[0], i),
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Role: role,
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Image: image,
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}
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nodes = append(nodes, node)
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}
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return nodes, cluster
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}
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