mirror of
https://github.com/kubernetes-sigs/kustomize.git
synced 2026-05-17 18:25:26 +00:00
write create-substitution into command
This commit is contained in:
Phillip Wittrock
80
cmd/config/internal/commands/cmdcreatesubstitution.go
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80
cmd/config/internal/commands/cmdcreatesubstitution.go
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@@ -0,0 +1,80 @@
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// Copyright 2019 The Kubernetes Authors.
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// SPDX-License-Identifier: Apache-2.0
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package commands
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import (
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"strings"
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"github.com/spf13/cobra"
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"sigs.k8s.io/kustomize/kyaml/errors"
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"sigs.k8s.io/kustomize/kyaml/setters2"
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"sigs.k8s.io/kustomize/kyaml/setters2/settersutil"
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)
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// NewCreateSubstitutionRunner returns a command runner.
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func NewCreateSubstitutionRunner(parent string) *CreateSubstitutionRunner {
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r := &CreateSubstitutionRunner{}
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cs := &cobra.Command{
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Use: "create-subst DIR NAME VALUE",
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Args: cobra.ExactArgs(3),
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PreRunE: r.preRunE,
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RunE: r.runE,
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}
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cs.Flags().StringVar(&r.CreateSubstitution.FieldName, "field", "",
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"name of the field to set -- e.g. --field port")
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cs.Flags().StringVar(&r.CreateSubstitution.Pattern, "pattern", "",
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"substitution pattern")
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cs.Flags().StringSliceVar(&r.Values, "value", []string{""},
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"substitution values for the pattern. format is PATTERN_MARKER=SETTER_NAME"+
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"where PATTERN_MARKER is the pattern substring to replace, and SETTER_NAME is the"+
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"setter from which to take the replacement value.")
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_ = cs.MarkFlagRequired("pattern")
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fixDocs(parent, cs)
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r.Command = cs
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return r
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}
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func CreateSubstitutionCommand(parent string) *cobra.Command {
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return NewCreateSubstitutionRunner(parent).Command
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}
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type CreateSubstitutionRunner struct {
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Command *cobra.Command
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CreateSubstitution settersutil.SubstitutionCreator
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OpenAPIFile string
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Values []string
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}
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func (r *CreateSubstitutionRunner) runE(c *cobra.Command, args []string) error {
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return handleError(c, r.CreateSubstitution.Create(r.OpenAPIFile, args[0]))
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}
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func (r *CreateSubstitutionRunner) preRunE(c *cobra.Command, args []string) error {
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var err error
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r.CreateSubstitution.Name = args[1]
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r.CreateSubstitution.FieldValue = args[2]
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if err != nil {
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return err
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}
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r.OpenAPIFile, err = GetOpenAPIFile(args)
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if err != nil {
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return err
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}
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// parse the marker values
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for i := range r.Values {
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parts := strings.SplitN(r.Values[i], "=", 2)
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if len(parts) < 2 {
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return errors.Errorf("values must be specified as PATTERN_MARKER=SETTER_NAME")
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}
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ref := setters2.DefinitionsPrefix + setters2.SetterDefinitionPrefix + parts[1]
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r.CreateSubstitution.Values = append(
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r.CreateSubstitution.Values,
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setters2.Value{Marker: parts[0], Ref: ref},
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)
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}
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return nil
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}
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171
cmd/config/internal/commands/cmdcreatesubstitution_test.go
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171
cmd/config/internal/commands/cmdcreatesubstitution_test.go
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@@ -0,0 +1,171 @@
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// Copyright 2019 The Kubernetes Authors.
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// SPDX-License-Identifier: Apache-2.0
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package commands_test
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import (
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"bytes"
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"io/ioutil"
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"os"
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"strings"
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"testing"
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"github.com/stretchr/testify/assert"
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"sigs.k8s.io/kustomize/cmd/config/internal/commands"
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"sigs.k8s.io/kustomize/kyaml/openapi"
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)
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func TestCreateSubstitutionCommand(t *testing.T) {
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var tests = []struct {
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name string
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inputOpenAPI string
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input string
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args []string
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out string
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expectedOpenAPI string
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expectedResources string
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}{
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{
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name: "substitution replicas",
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args: []string{
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"image", "nginx:1.7.9", "--pattern", "IMAGE:TAG",
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"--value", "IMAGE=image", "--value", "TAG=tag"},
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input: `
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apiVersion: apps/v1
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kind: Deployment
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metadata:
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name: nginx-deployment
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spec:
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replicas: 3
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template:
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spec:
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containers:
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- name: nginx
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image: nginx:1.7.9
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- name: sidecar
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image: sidecar:1.7.9
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`,
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inputOpenAPI: `
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apiVersion: v1alpha1
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kind: Example
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openAPI:
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definitions:
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io.k8s.cli.setters.image:
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x-k8s-cli:
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setter:
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name: image
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value: "nginx"
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io.k8s.cli.setters.tag:
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x-k8s-cli:
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setter:
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name: tag
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value: "1.7.9"
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`,
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expectedOpenAPI: `
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apiVersion: v1alpha1
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kind: Example
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openAPI:
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definitions:
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io.k8s.cli.setters.image:
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x-k8s-cli:
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setter:
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name: image
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value: "nginx"
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io.k8s.cli.setters.tag:
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x-k8s-cli:
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setter:
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name: tag
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value: "1.7.9"
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io.k8s.cli.substitutions.image:
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x-k8s-cli:
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substitution:
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name: image
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pattern: IMAGE:TAG
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values:
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- marker: IMAGE
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ref: '#/definitions/io.k8s.cli.setters.image'
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- marker: TAG
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ref: '#/definitions/io.k8s.cli.setters.tag'
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`,
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expectedResources: `
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apiVersion: apps/v1
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kind: Deployment
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metadata:
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name: nginx-deployment
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spec:
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replicas: 3
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template:
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spec:
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containers:
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- name: nginx
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image: nginx:1.7.9 # {"$ref":"#/definitions/io.k8s.cli.substitutions.image"}
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- name: sidecar
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image: sidecar:1.7.9
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`,
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},
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}
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for i := range tests {
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test := tests[i]
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t.Run(test.name, func(t *testing.T) {
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// reset the openAPI afterward
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openapi.ResetOpenAPI()
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defer openapi.ResetOpenAPI()
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f, err := ioutil.TempFile("", "k8s-cli-")
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if !assert.NoError(t, err) {
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t.FailNow()
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}
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defer os.Remove(f.Name())
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err = ioutil.WriteFile(f.Name(), []byte(test.inputOpenAPI), 0600)
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if !assert.NoError(t, err) {
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t.FailNow()
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}
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commands.GetOpenAPIFile = func(args []string) (s string, err error) {
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return f.Name(), nil
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}
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r, err := ioutil.TempFile("", "k8s-cli-*.yaml")
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if !assert.NoError(t, err) {
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t.FailNow()
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}
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defer os.Remove(r.Name())
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err = ioutil.WriteFile(r.Name(), []byte(test.input), 0600)
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if !assert.NoError(t, err) {
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t.FailNow()
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}
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runner := commands.NewCreateSubstitutionRunner("")
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out := &bytes.Buffer{}
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runner.Command.SetOut(out)
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runner.Command.SetArgs(append([]string{r.Name()}, test.args...))
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err = runner.Command.Execute()
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if !assert.NoError(t, err) {
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t.FailNow()
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}
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if !assert.Equal(t, test.out, out.String()) {
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t.FailNow()
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}
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actualResources, err := ioutil.ReadFile(r.Name())
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if !assert.NoError(t, err) {
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t.FailNow()
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}
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if !assert.Equal(t,
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strings.TrimSpace(test.expectedResources),
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strings.TrimSpace(string(actualResources))) {
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t.FailNow()
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}
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actualOpenAPI, err := ioutil.ReadFile(f.Name())
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if !assert.NoError(t, err) {
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t.FailNow()
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}
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if !assert.Equal(t,
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strings.TrimSpace(test.expectedOpenAPI),
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strings.TrimSpace(string(actualOpenAPI))) {
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t.FailNow()
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}
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})
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}
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}
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