forked from istio/istio
/
deployment.go
125 lines (105 loc) · 3.03 KB
/
deployment.go
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// Copyright 2019 Istio Authors
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package istio
import (
"fmt"
"io/ioutil"
"path"
"regexp"
"sort"
"strings"
"istio.io/istio/pkg/test"
"istio.io/istio/pkg/test/env"
"istio.io/istio/pkg/test/helm"
)
const (
namespaceTemplate = `apiVersion: v1
kind: Namespace
metadata:
name: %s
labels:
istio-injection: disabled
`
)
const (
yamlSeparator = "\n---\n"
)
func generateIstioYaml(helmDir string, cfg Config) (string, error) {
generatedYaml, err := renderIstioTemplate(helmDir, cfg)
if err != nil {
return "", err
}
// TODO: This is Istio deployment specific. We may need to remove/reconcile this as a parameter
// when we support Helm deployment of non-Istio artifacts.
namespaceData := fmt.Sprintf(namespaceTemplate, cfg.SystemNamespace)
generatedYaml = test.JoinConfigs(namespaceData, generatedYaml)
return generatedYaml, nil
}
func renderIstioTemplate(helmDir string, cfg Config) (string, error) {
if err := helm.Init(helmDir, true); err != nil {
return "", err
}
renderedYaml, err := helm.Template(
helmDir, cfg.ChartDir, "istio", cfg.SystemNamespace, path.Join(env.IstioChartDir, cfg.ValuesFile), cfg.Values)
if err != nil {
return "", err
}
return renderedYaml, nil
}
func splitIstioYaml(istioYaml string) (string, string) {
installYaml := ""
configureYaml := ""
parts := strings.Split(istioYaml, yamlSeparator)
// Make the regular expression multi-line and anchor to the beginning of the line.
r := regexp.MustCompile(`(?m)^apiVersion: *.*istio\.io.*`)
for _, p := range parts {
if r.Match([]byte(p)) {
if configureYaml != "" {
configureYaml += yamlSeparator
}
configureYaml += p
} else {
if installYaml != "" {
installYaml += yamlSeparator
}
installYaml += p
}
}
return installYaml, configureYaml
}
func generateCRDYaml(crdFilesDir string) (string, error) {
// Note: When adding a CRD to the install, a new CRDFile* constant is needed
// This slice contains the list of CRD files installed during testing
var crdFiles []string
fs, err := ioutil.ReadDir(crdFilesDir)
if err != nil {
return "", err
}
for _, f := range fs {
if strings.HasPrefix(f.Name(), "crd-") {
crdFiles = append(crdFiles, f.Name())
}
}
sort.Strings(crdFiles)
// Get Joined Crds Yaml file
prevContent := ""
for _, yamlFileName := range crdFiles {
content, err := test.ReadConfigFile(path.Join(crdFilesDir, yamlFileName))
if err != nil {
return "", err
}
prevContent = test.JoinConfigs(content, prevContent)
}
return prevContent, nil
}