mirror of https://github.com/k3d-io/k3d
- if --role=master, update nginx config and reload itpull/212/head
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/* |
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Copyright © 2020 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 cluster |
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import ( |
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"fmt" |
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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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log "github.com/sirupsen/logrus" |
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) |
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// AddMasterToLoadBalancer adds a new master node to the loadbalancer configuration
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func AddMasterToLoadBalancer(runtime runtimes.Runtime, cluster *k3d.Cluster, newNode *k3d.Node) error { |
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// find the LoadBalancer for the target cluster
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masterNodes := "" |
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var loadbalancer *k3d.Node |
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for _, node := range cluster.Nodes { |
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if node.Role == k3d.LoadBalancerRole { // get the loadbalancer we want to update
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loadbalancer = node |
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} else if node.Role == k3d.MasterRole { // create a list of master nodes
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masterNodes += node.Name + "," |
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} |
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} |
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if loadbalancer == nil { |
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return fmt.Errorf("Failed to find loadbalancer for cluster '%s'", cluster.Name) |
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} |
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masterNodes += newNode.Name // append the new master node to the end of the list
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log.Debugf("SERVERS=%s", masterNodes) |
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command := fmt.Sprintf("SERVERS=%s %s", masterNodes, "confd -onetime -backend env && nginx -s reload") |
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if err := runtime.ExecInNode(loadbalancer, []string{"sh", "-c", command}); err != nil { |
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log.Errorln("Failed to update loadbalancer configuration") |
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return err |
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} |
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return nil |
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} |
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