129 lines
4.1 KiB
Go
129 lines
4.1 KiB
Go
package resources
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import (
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"fmt"
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jenkinsv1alpha2 "github.com/jenkinsci/kubernetes-operator/pkg/apis/jenkins/v1alpha2"
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corev1 "k8s.io/api/core/v1"
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metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
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logf "sigs.k8s.io/controller-runtime/pkg/log"
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)
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const (
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NameWithSuffixFormat = "%s-%s"
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PluginDefinitionFormat = "%s:%s"
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BuilderDockerfileArg = "--dockerfile=/workspace/dockerfile/Dockerfile"
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BuilderContextDirArg = "--context=dir://workspace/"
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BuilderPushArg = "--no-push"
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BuilderDigestFileArg = "--digest-file=/dev/termination-log"
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BuilderSuffix = "builder"
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DockerfileStorageSuffix = "dockerfile-storage"
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DockerfileNameSuffix = "dockerfile"
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JenkinsImageBuilderImage = "gcr.io/kaniko-project/executor:latest"
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JenkinsImageBuilderName = "jenkins-image-builder"
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JenkinsImageDefaultBaseImage = "jenkins/jenkins:lts"
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DockerfileName = "Dockerfile"
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DockerfileTemplate = `FROM %s
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RUN curl -o /tmp/install-plugins.sh https://raw.githubusercontent.com/jenkinsci/docker/master/install-plugins.sh
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RUN chmod +x /tmp/install-plugins.sh
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RUN install-plugins.sh %s `
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)
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var log = logf.Log.WithName("controller_jenkinsimage")
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// NewBuilderPod returns a busybox pod with the same name/namespace as the cr.
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func NewBuilderPod(cr *jenkinsv1alpha2.JenkinsImage) *corev1.Pod {
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name := fmt.Sprintf(NameWithSuffixFormat, cr.Name, BuilderSuffix)
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args := []string{BuilderDockerfileArg, BuilderContextDirArg, BuilderPushArg, BuilderDigestFileArg}
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volumes := getVolumes(cr)
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volumeMounts := getVolumesMounts(cr)
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p := &corev1.Pod{
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ObjectMeta: metav1.ObjectMeta{
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Name: name,
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Namespace: cr.Namespace,
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},
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Spec: corev1.PodSpec{
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RestartPolicy: corev1.RestartPolicyNever,
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Containers: []corev1.Container{
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{
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Name: JenkinsImageBuilderName,
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Image: JenkinsImageBuilderImage,
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Args: args,
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VolumeMounts: volumeMounts,
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},
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},
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Volumes: volumes,
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},
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}
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return p
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}
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// NewDockerfileConfigMap returns a busybox pod with the same name/namespace as the cr.
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func NewDockerfileConfigMap(cr *jenkinsv1alpha2.JenkinsImage) *corev1.ConfigMap {
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dockerfileContent := fmt.Sprintf(DockerfileTemplate, getDefaultedBaseImage(cr), getPluginsList(cr))
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name := fmt.Sprintf(NameWithSuffixFormat, cr.Name, DockerfileNameSuffix)
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data := map[string]string{DockerfileName: dockerfileContent}
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dockerfile := &corev1.ConfigMap{
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ObjectMeta: metav1.ObjectMeta{
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Name: name,
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Namespace: cr.Namespace,
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},
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Data: data,
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}
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return dockerfile
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}
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func getPluginsList(cr *jenkinsv1alpha2.JenkinsImage) string {
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logger := log.WithName("jenkinsimage_getPluginsList")
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plugins := ""
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for _, v := range cr.Spec.Plugins {
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plugins += fmt.Sprintf(PluginDefinitionFormat, v.Name, v.Version) + " "
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logger.Info(fmt.Sprintf("Adding plugin %s:%s ", v.Name, v.Version))
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}
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return plugins
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}
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func getDefaultedBaseImage(cr *jenkinsv1alpha2.JenkinsImage) string {
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if len(cr.Spec.BaseImage.Name) != 0 {
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return cr.Spec.BaseImage.Name
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}
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return JenkinsImageDefaultBaseImage
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}
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func getVolumes(cr *jenkinsv1alpha2.JenkinsImage) []corev1.Volume {
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name := fmt.Sprintf(NameWithSuffixFormat, cr.Name, DockerfileStorageSuffix)
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storage := corev1.Volume{
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Name: name,
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VolumeSource: corev1.VolumeSource{
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EmptyDir: &corev1.EmptyDirVolumeSource{},
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},
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}
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name = fmt.Sprintf(NameWithSuffixFormat, cr.Name, DockerfileNameSuffix)
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config := corev1.Volume{
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Name: name,
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VolumeSource: corev1.VolumeSource{
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ConfigMap: &corev1.ConfigMapVolumeSource{
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LocalObjectReference: corev1.LocalObjectReference{Name: name},
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},
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},
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}
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volumes := []corev1.Volume{storage, config}
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return volumes
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}
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func getVolumesMounts(cr *jenkinsv1alpha2.JenkinsImage) []corev1.VolumeMount {
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name := fmt.Sprintf(NameWithSuffixFormat, cr.Name, DockerfileStorageSuffix)
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storage := corev1.VolumeMount{
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Name: name,
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MountPath: "/workspace",
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}
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name = fmt.Sprintf(NameWithSuffixFormat, cr.Name, DockerfileNameSuffix)
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config := corev1.VolumeMount{
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Name: name,
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MountPath: "/workspace/dockerfile",
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}
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volumeMounts := []corev1.VolumeMount{storage, config}
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return volumeMounts
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}
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