mirror of https://github.com/k3d-io/k3d
iwilltry42
3 years ago
parent
c6ee295deb
commit
2516cad12e
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/* |
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Copyright © 2020-2021 The k3d Author(s) |
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|
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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 client |
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import ( |
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"context" |
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"errors" |
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"fmt" |
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"strings" |
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"github.com/docker/go-connections/nat" |
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"github.com/rancher/k3d/v4/pkg/config/types" |
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config "github.com/rancher/k3d/v4/pkg/config/v1alpha3" |
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"github.com/rancher/k3d/v4/pkg/runtimes" |
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k3d "github.com/rancher/k3d/v4/pkg/types" |
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"github.com/rancher/k3d/v4/pkg/util" |
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log "github.com/sirupsen/logrus" |
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"gopkg.in/yaml.v2" |
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) |
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var ( |
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ErrNodeAddPortsExists error = errors.New("port exists on target") |
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) |
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func TransformPorts(ctx context.Context, runtime runtimes.Runtime, cluster *k3d.Cluster, portsWithNodeFilters []config.PortWithNodeFilters) error { |
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nodeCount := len(cluster.Nodes) |
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nodeList := cluster.Nodes |
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for _, portWithNodeFilters := range portsWithNodeFilters { |
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log.Tracef("inspecting port mapping for %s with nodefilters %s", portWithNodeFilters.Port, portWithNodeFilters.NodeFilters) |
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if len(portWithNodeFilters.NodeFilters) == 0 && nodeCount > 1 { |
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log.Infof("portmapping '%s' lacks a nodefilter, but there's more than one node: defaulting to %s", portWithNodeFilters.Port, types.DefaultTargetsNodefiltersPortMappings) |
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portWithNodeFilters.NodeFilters = types.DefaultTargetsNodefiltersPortMappings |
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} |
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|
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for _, f := range portWithNodeFilters.NodeFilters { |
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if strings.HasPrefix(f, "loadbalancer") { |
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log.Infof("portmapping '%s' targets the loadbalancer: defaulting to %s", portWithNodeFilters.Port, types.DefaultTargetsNodefiltersPortMappings) |
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portWithNodeFilters.NodeFilters = types.DefaultTargetsNodefiltersPortMappings |
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break |
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} |
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} |
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filteredNodes, err := util.FilterNodesWithSuffix(nodeList, portWithNodeFilters.NodeFilters) |
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if err != nil { |
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return err |
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} |
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for suffix, nodes := range filteredNodes { |
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portmappings, err := nat.ParsePortSpec(portWithNodeFilters.Port) |
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if err != nil { |
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return fmt.Errorf("error parsing port spec '%s': %+v", portWithNodeFilters.Port, err) |
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} |
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if suffix == "proxy" || suffix == util.NodeFilterSuffixNone { // proxy is the default suffix for port mappings
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if cluster.ServerLoadBalancer == nil { |
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return fmt.Errorf("port-mapping of type 'proxy' specified, but loadbalancer is disabled") |
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} |
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if err := addPortMappings(cluster.ServerLoadBalancer.Node, portmappings); err != nil { |
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return err |
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} |
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for _, pm := range portmappings { |
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if err := loadbalancerAddPortConfigs(cluster.ServerLoadBalancer, pm, nodes); err != nil { |
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return err |
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} |
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} |
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} else if suffix == "direct" { |
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if len(nodes) > 1 { |
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return fmt.Errorf("error: cannot apply a direct port-mapping (%s) to more than one node", portmappings) |
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} |
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for _, node := range nodes { |
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if err := addPortMappings(node, portmappings); err != nil { |
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return err |
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} |
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} |
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} else if suffix != util.NodeFilterMapKeyAll { |
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return fmt.Errorf("error adding port mappings: unknown suffix %s", suffix) |
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} |
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} |
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} |
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// print generated loadbalancer config
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if log.GetLevel() >= log.DebugLevel { |
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yamlized, err := yaml.Marshal(cluster.ServerLoadBalancer.Config) |
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if err != nil { |
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log.Errorf("error printing loadbalancer config: %v", err) |
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} else { |
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log.Debugf("generated loadbalancer config:\n%s", string(yamlized)) |
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} |
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} |
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return nil |
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} |
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func addPortMappings(node *k3d.Node, portmappings []nat.PortMapping) error { |
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if node.Ports == nil { |
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node.Ports = nat.PortMap{} |
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} |
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for _, pm := range portmappings { |
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if _, exists := node.Ports[pm.Port]; exists { |
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node.Ports[pm.Port] = append(node.Ports[pm.Port], pm.Binding) |
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} else { |
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node.Ports[pm.Port] = []nat.PortBinding{pm.Binding} |
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} |
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} |
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return nil |
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} |
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