37c2854cce
Reworked build process of dependent krm functions to use the latest airshipctl Change-Id: If4c7f992123b86442980f381ae69fb003f4851e3
99 lines
2.6 KiB
Go
99 lines
2.6 KiB
Go
/*
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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https://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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package main
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import (
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"fmt"
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"io"
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"io/ioutil"
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"os"
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"os/exec"
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"path/filepath"
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"strings"
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"sigs.k8s.io/kustomize/kyaml/fn/framework"
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"sigs.k8s.io/kustomize/kyaml/fn/framework/command"
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"sigs.k8s.io/kustomize/kyaml/kio"
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"sigs.k8s.io/kustomize/kyaml/yaml"
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)
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const (
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clusterctl = "clusterctl"
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clusterAPIConfig = "clusterctl.yaml"
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dirPerm = 0755
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filePerm = 0644
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)
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// ClusterctlOptions holds all necessary data to run clusterctl inside of KRM
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type ClusterctlOptions struct {
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CmdOptions []string `json:"cmd-options,omitempty"`
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Config []byte `json:"config,omitempty"`
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Components map[string][]byte `json:"components,omitempty"`
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}
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// Run prepares config, repo tree and executes clusterctl with appropriate options
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func (c *ClusterctlOptions) Run([]*yaml.RNode) ([]*yaml.RNode, error) {
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if err := c.buildRepoTree(); err != nil {
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return nil, err
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}
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if err := ioutil.WriteFile(clusterAPIConfig, c.Config, filePerm); err != nil {
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return nil, err
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}
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return nil, runCmd(clusterctl, c.CmdOptions)
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}
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func (c *ClusterctlOptions) buildRepoTree() error {
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for f, component := range c.Components {
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componentDir := filepath.Dir(f)
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if _, err := os.Stat(componentDir); os.IsNotExist(err) {
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if err := os.MkdirAll(componentDir, dirPerm); err != nil {
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return err
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}
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}
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if err := ioutil.WriteFile(f, component, filePerm); err != nil {
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return err
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}
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}
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return nil
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}
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func runCmd(cmd string, opts []string) error {
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printMsg("#%s %s\n", cmd, strings.Join(opts, " "))
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c := exec.Command(cmd, opts...)
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// allows to observe realtime output from script
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w := io.Writer(os.Stderr)
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c.Stdout = w
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c.Stderr = w
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return c.Run()
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}
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// printMsg is a convenient function to print output to stderr
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func printMsg(format string, a ...interface{}) {
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if _, err := fmt.Fprintf(os.Stderr, format, a...); err != nil {
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}
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}
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func main() {
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cfg := &ClusterctlOptions{}
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if err := command.Build(framework.SimpleProcessor{Filter: kio.FilterFunc(cfg.Run), Config: cfg},
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command.StandaloneDisabled, false).Execute(); err != nil {
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printMsg("\n")
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os.Exit(1)
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}
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}
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