stdlib: implemented kubernetes/helm

Signed-off-by: Sam Alba <sam.alba@gmail.com>
2021-03-22 12:07:38 -07:00
parent f03018d230
commit cbb4f325bf
2 changed files with 156 additions and 0 deletions
--- a/stdlib/kubernetes/helm/helm.cue
+++ b/stdlib/kubernetes/helm/helm.cue
@@ -0,0 +1,109 @@
+package helm
+
+import (
+	"strconv"
+
+	"dagger.io/dagger"
+	"dagger.io/llb"
+	"dagger.io/kubernetes"
+)
+
+// Install a Helm chart
+#Chart: {
+	// Helm deployment name
+	name: string
+
+	// Helm chart to install
+	chart: string | dagger.#Artifact
+
+	// Helm chart repository (defaults to stable)
+	repository: *"https://charts.helm.sh/stable" | string
+
+	// Helm values (either a YAML string or a Cue structure)
+	values?: string
+
+	// Kubernetes Namespace to deploy to
+	namespace: string
+
+	// Helm action to apply
+	action: *"installOrUpgrade" | "install" | "upgrade"
+
+	// time to wait for any individual Kubernetes operation (like Jobs for hooks)
+	timeout: string | *"5m"
+
+	// if set, will wait until all Pods, PVCs, Services, and minimum number of
+	// Pods of a Deployment, StatefulSet, or ReplicaSet are in a ready state
+	// before marking the release as successful.
+	// It will wait for as long as timeout
+	wait: *true | bool
+
+	// if set, installation process purges chart on fail.
+	// The wait option will be set automatically if atomic is used
+	atomic: *true | bool
+
+	// Kube config file
+	kubeconfig: dagger.#Secret
+
+	// Helm version
+	version: *"3.5.2" | string
+
+	// Kubectl version
+	kubectlVersion: *"v1.19.9" | string
+
+	#compute: [
+		llb.#Load & {
+			from: kubernetes.#Kubectl & {
+				version: kubectlVersion
+			}
+		},
+		llb.#Mkdir & {
+			path: "/helm"
+		},
+		llb.#WriteFile & {
+			dest:    "/entrypoint.sh"
+			content: #code
+		},
+		llb.#WriteFile & {
+			dest:    "/kubeconfig"
+			content: kubeconfig
+			mode:    0o600
+		},
+		if (chart & string) != _|_ {
+			llb.#WriteFile & {
+				dest:    "/helm/chart"
+				content: chart
+			}
+		},
+		llb.#Exec & {
+			always: true
+			args: [
+				"/bin/bash",
+				"--noprofile",
+				"--norc",
+				"-eo",
+				"pipefail",
+				"/entrypoint.sh",
+			]
+			env: {
+				KUBECONFIG:     "/kubeconfig"
+				KUBE_NAMESPACE: namespace
+
+				HELM_VERSION: version
+				HELM_REPO:    repository
+				HELM_NAME:    name
+				HELM_ACTION:  action
+				HELM_TIMEOUT: timeout
+				HELM_WAIT:    strconv.FormatBool(wait)
+				HELM_ATOMIC:  strconv.FormatBool(atomic)
+			}
+			mount: {
+				if (values & string) != _|_ {
+					"/helm/varlues.yaml": values
+				}
+				if (chart & dagger.#Artifact) != _|_ {
+					"/helm/chart": from: chart
+				}
+			}
+		},
+	]
+}