mirror of https://github.com/docker/compose.git
126 lines
3.2 KiB
Go
126 lines
3.2 KiB
Go
// +build kube
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/*
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Copyright 2020 Docker Compose CLI authors
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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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http://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 kube
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import (
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"fmt"
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"github.com/AlecAivazis/survey/v2/terminal"
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"github.com/docker/compose-cli/api/context/store"
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"github.com/docker/compose-cli/api/errdefs"
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"github.com/docker/compose-cli/utils/prompt"
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"github.com/docker/compose-cli/kube/resources"
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)
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// ContextParams options for creating a Kubernetes context
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type ContextParams struct {
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KubeContextName string
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Description string
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KubeConfigPath string
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FromEnvironment bool
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}
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// CreateContextData create Docker context data
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func (cp ContextParams) CreateContextData() (interface{}, string, error) {
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if cp.FromEnvironment {
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// we use the current kubectl context from a $KUBECONFIG path
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return store.KubeContext{
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FromEnvironment: cp.FromEnvironment,
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}, cp.getDescription(), nil
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}
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user := prompt.User{}
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selectContext := func() error {
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contexts, err := resources.ListAvailableKubeConfigContexts(cp.KubeConfigPath)
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if err != nil {
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return err
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}
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selected, err := user.Select("Select kubeconfig context", contexts)
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if err != nil {
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if err == terminal.InterruptErr {
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return errdefs.ErrCanceled
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}
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return err
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}
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cp.KubeContextName = contexts[selected]
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return nil
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}
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if cp.KubeConfigPath != "" {
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if cp.KubeContextName != "" {
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return store.KubeContext{
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ContextName: cp.KubeContextName,
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KubeconfigPath: cp.KubeConfigPath,
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FromEnvironment: cp.FromEnvironment,
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}, cp.getDescription(), nil
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}
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err := selectContext()
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if err != nil {
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return nil, "", err
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}
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} else {
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// interactive
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var options []string
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var actions []func() error
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options = append(options, "Context from kubeconfig file")
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actions = append(actions, selectContext)
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options = append(options, "Kubernetes environment variables")
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actions = append(actions, func() error {
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cp.FromEnvironment = true
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return nil
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})
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selected, err := user.Select("Create a Docker context using:", options)
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if err != nil {
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if err == terminal.InterruptErr {
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return nil, "", errdefs.ErrCanceled
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}
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return nil, "", err
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}
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err = actions[selected]()
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if err != nil {
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return nil, "", err
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}
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}
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return store.KubeContext{
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ContextName: cp.KubeContextName,
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KubeconfigPath: cp.KubeConfigPath,
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FromEnvironment: cp.FromEnvironment,
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}, cp.getDescription(), nil
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}
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func (cp ContextParams) getDescription() string {
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if cp.Description != "" {
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return cp.Description
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}
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if cp.FromEnvironment {
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return "From environment variables"
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}
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configFile := "default kube config"
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if cp.KubeConfigPath != "" {
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configFile = cp.KubeConfigPath
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}
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return fmt.Sprintf("%s (in %s)", cp.KubeContextName, configFile)
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}
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