Merge pull request #204 from dagger/example-kubernetes

Example kubernetes

Makefile

@@ -16,7 +16,7 @@ test:
 .PHONY: cuefmt
 cuefmt:
 	@(cue fmt -s ./stdlib/...)
-	@(cue fmt -s ./examples/*)
+	@(cue fmt -s ./examples/*/)
 	@(cue fmt -s ./tests/...)
 
 .PHONY: lint

examples/README.md

@@ -0,0 +1,54 @@
+# Dagger Examples
+
+## aws-eks: Kubernetes on AWS (EKS)
+
+This example provisions a Kubernetes (EKS) cluster on AWS using Cloudformation,
+it also outputs the new generated kubeconfig for the `kubectl` client.
+
+How to run:
+
+```sh
+dagger compute ./aws-eks \
+    --input-string awsConfig.accessKey="MY_AWS_ACCESS_KEY" \
+    --input-string awsConfig.secretKey="MY_AWS_SECRET_KEY" \
+    | jq -j '.kubeconfig.kubeconfig' > kubeconfig
+```
+
+## aws-monitoring: HTTP Monitoring on AWS
+
+This example implements a full HTTP(s) Monitoring solution on AWS using
+Cloudformation and Cloudwatch Synthetics.
+
+How to run:
+
+```sh
+dagger compute ./aws-monitoring \
+    --input-string awsConfig.accessKey="MY_AWS_ACCESS_KEY" \
+    --input-string awsConfig.secretKey="MY_AWS_SECRET_KEY" \
+```
+
+## kubernetes: Deploy to an existing Kubernetes cluster
+
+This example shows two different ways for deploying to an existing Kubernetes
+(EKS) cluster: a simple deployment spec (written in Cue), and a local helm
+chart.
+
+How to run:
+
+```sh
+dagger compute ./kubernetes \
+    --input-string awsConfig.accessKey="MY_AWS_ACCESS_KEY" \
+    --input-string awsConfig.secretKey="MY_AWS_SECRET_KEY" \
+    --input-dir helmChart.chart=./kubernetes/testdata/mychart
+```
+
+## react-netlify: Deploy a React Web app to Netlify
+
+This example shows how to deploy a simple React App to Netlify.
+
+How to run:
+
+```sh
+dagger compute ./react-netlify \
+    --input-string todoApp.account.token="MY_NETLIFY_API_TOKEN"
+```

examples/aws-eks/README.md

@@ -1,12 +0,0 @@
-# Kubernetes on AWS (EKS)
-
-This example creates a new EKS cluster and outputs its corresponding kubeconfig
-
-## How to run
-
-```sh
-dagger compute . \
-    --input-string awsConfig.accessKey="MY_AWS_ACCESS_KEY" \
-    --input-string awsConfig.secretKey="MY_AWS_SECRET_KEY" \
-    | jq -j '.kubeconfig.kubeconfig' > kubeconfig
-```

examples/kubernetes/main.cue

@@ -0,0 +1,53 @@
+package main
+
+import (
+	"encoding/yaml"
+	"dagger.io/dagger"
+	"dagger.io/aws"
+	"dagger.io/aws/eks"
+	"dagger.io/kubernetes"
+	"dagger.io/kubernetes/helm"
+)
+
+kubeSrc: {
+	apiVersion: "v1"
+	kind:       "Pod"
+	metadata: name: "kube-test"
+	spec: {
+		restartPolicy: "Never"
+		containers: [{
+			name:  "test"
+			image: "hello-world"
+		}]
+	}
+}
+
+// Fill using:
+//          --input-string awsConfig.accessKey=XXX
+//          --input-string awsConfig.secretKey=XXX
+awsConfig: aws.#Config & {
+	region: *"us-east-2" | string
+}
+
+// Take the kubeconfig from the EKS cluster
+cluster: eks.#KubeConfig & {
+	config:      awsConfig
+	clusterName: *"dagger-example-eks-cluster" | string
+}
+
+// Example of a simple `kubectl apply` using a simple config
+kubeApply: kubernetes.#Apply & {
+	source:     yaml.Marshal(kubeSrc)
+	namespace:  "test"
+	kubeconfig: cluster.kubeconfig
+}
+
+// Example of a `helm install` using a local chart
+// Fill using:
+//          --input-dir helmChart.chart=./testdata/mychart
+helmChart: helm.#Chart & {
+	name:       "test-helm"
+	namespace:  "test"
+	kubeconfig: cluster.kubeconfig
+	chart:      dagger.#Artifact
+}

examples/kubernetes/testdata/mychart/.helmignore

@@ -0,0 +1,23 @@
+# Patterns to ignore when building packages.
+# This supports shell glob matching, relative path matching, and
+# negation (prefixed with !). Only one pattern per line.
+.DS_Store
+# Common VCS dirs
+.git/
+.gitignore
+.bzr/
+.bzrignore
+.hg/
+.hgignore
+.svn/
+# Common backup files
+*.swp
+*.bak
+*.tmp
+*.orig
+*~
+# Various IDEs
+.project
+.idea/
+*.tmproj
+.vscode/

examples/kubernetes/testdata/mychart/Chart.yaml

@@ -0,0 +1,21 @@
+apiVersion: v2
+name: mychart
+description: A Helm chart for Kubernetes
+
+# A chart can be either an 'application' or a 'library' chart.
+#
+# Application charts are a collection of templates that can be packaged into versioned archives
+# to be deployed.
+#
+# Library charts provide useful utilities or functions for the chart developer. They're included as
+# a dependency of application charts to inject those utilities and functions into the rendering
+# pipeline. Library charts do not define any templates and therefore cannot be deployed.
+type: application
+
+# This is the chart version. This version number should be incremented each time you make changes
+# to the chart and its templates, including the app version.
+version: 0.1.0
+
+# This is the version number of the application being deployed. This version number should be
+# incremented each time you make changes to the application.
+appVersion: 1.16.0

examples/kubernetes/testdata/mychart/templates/NOTES.txt

@@ -0,0 +1,21 @@
+1. Get the application URL by running these commands:
+{{- if .Values.ingress.enabled }}
+{{- range $host := .Values.ingress.hosts }}
+  {{- range .paths }}
+  http{{ if $.Values.ingress.tls }}s{{ end }}://{{ $host.host }}{{ . }}
+  {{- end }}
+{{- end }}
+{{- else if contains "NodePort" .Values.service.type }}
+  export NODE_PORT=$(kubectl get --namespace {{ .Release.Namespace }} -o jsonpath="{.spec.ports[0].nodePort}" services {{ include "mychart.fullname" . }})
+  export NODE_IP=$(kubectl get nodes --namespace {{ .Release.Namespace }} -o jsonpath="{.items[0].status.addresses[0].address}")
+  echo http://$NODE_IP:$NODE_PORT
+{{- else if contains "LoadBalancer" .Values.service.type }}
+     NOTE: It may take a few minutes for the LoadBalancer IP to be available.
+           You can watch the status of by running 'kubectl get --namespace {{ .Release.Namespace }} svc -w {{ include "mychart.fullname" . }}'
+  export SERVICE_IP=$(kubectl get svc --namespace {{ .Release.Namespace }} {{ include "mychart.fullname" . }} --template "{{"{{ range (index .status.loadBalancer.ingress 0) }}{{.}}{{ end }}"}}")
+  echo http://$SERVICE_IP:{{ .Values.service.port }}
+{{- else if contains "ClusterIP" .Values.service.type }}
+  export POD_NAME=$(kubectl get pods --namespace {{ .Release.Namespace }} -l "app.kubernetes.io/name={{ include "mychart.name" . }},app.kubernetes.io/instance={{ .Release.Name }}" -o jsonpath="{.items[0].metadata.name}")
+  echo "Visit http://127.0.0.1:8080 to use your application"
+  kubectl --namespace {{ .Release.Namespace }} port-forward $POD_NAME 8080:80
+{{- end }}

examples/kubernetes/testdata/mychart/templates/_helpers.tpl

@@ -0,0 +1,63 @@
+{{/* vim: set filetype=mustache: */}}
+{{/*
+Expand the name of the chart.
+*/}}
+{{- define "mychart.name" -}}
+{{- default .Chart.Name .Values.nameOverride | trunc 63 | trimSuffix "-" -}}
+{{- end -}}
+
+{{/*
+Create a default fully qualified app name.
+We truncate at 63 chars because some Kubernetes name fields are limited to this (by the DNS naming spec).
+If release name contains chart name it will be used as a full name.
+*/}}
+{{- define "mychart.fullname" -}}
+{{- if .Values.fullnameOverride -}}
+{{- .Values.fullnameOverride | trunc 63 | trimSuffix "-" -}}
+{{- else -}}
+{{- $name := default .Chart.Name .Values.nameOverride -}}
+{{- if contains $name .Release.Name -}}
+{{- .Release.Name | trunc 63 | trimSuffix "-" -}}
+{{- else -}}
+{{- printf "%s-%s" .Release.Name $name | trunc 63 | trimSuffix "-" -}}
+{{- end -}}
+{{- end -}}
+{{- end -}}
+
+{{/*
+Create chart name and version as used by the chart label.
+*/}}
+{{- define "mychart.chart" -}}
+{{- printf "%s-%s" .Chart.Name .Chart.Version | replace "+" "_" | trunc 63 | trimSuffix "-" -}}
+{{- end -}}
+
+{{/*
+Common labels
+*/}}
+{{- define "mychart.labels" -}}
+helm.sh/chart: {{ include "mychart.chart" . }}
+{{ include "mychart.selectorLabels" . }}
+{{- if .Chart.AppVersion }}
+app.kubernetes.io/version: {{ .Chart.AppVersion | quote }}
+{{- end }}
+app.kubernetes.io/managed-by: {{ .Release.Service }}
+{{- end -}}
+
+{{/*
+Selector labels
+*/}}
+{{- define "mychart.selectorLabels" -}}
+app.kubernetes.io/name: {{ include "mychart.name" . }}
+app.kubernetes.io/instance: {{ .Release.Name }}
+{{- end -}}
+
+{{/*
+Create the name of the service account to use
+*/}}
+{{- define "mychart.serviceAccountName" -}}
+{{- if .Values.serviceAccount.create -}}
+    {{ default (include "mychart.fullname" .) .Values.serviceAccount.name }}
+{{- else -}}
+    {{ default "default" .Values.serviceAccount.name }}
+{{- end -}}
+{{- end -}}

examples/kubernetes/testdata/mychart/templates/deployment.yaml

@@ -0,0 +1,55 @@
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: {{ include "mychart.fullname" . }}
+  labels:
+    {{- include "mychart.labels" . | nindent 4 }}
+spec:
+  replicas: {{ .Values.replicaCount }}
+  selector:
+    matchLabels:
+      {{- include "mychart.selectorLabels" . | nindent 6 }}
+  template:
+    metadata:
+      labels:
+        {{- include "mychart.selectorLabels" . | nindent 8 }}
+    spec:
+    {{- with .Values.imagePullSecrets }}
+      imagePullSecrets:
+        {{- toYaml . | nindent 8 }}
+    {{- end }}
+      serviceAccountName: {{ include "mychart.serviceAccountName" . }}
+      securityContext:
+        {{- toYaml .Values.podSecurityContext | nindent 8 }}
+      containers:
+        - name: {{ .Chart.Name }}
+          securityContext:
+            {{- toYaml .Values.securityContext | nindent 12 }}
+          image: "{{ .Values.image.repository }}:{{ .Chart.AppVersion }}"
+          imagePullPolicy: {{ .Values.image.pullPolicy }}
+          ports:
+            - name: http
+              containerPort: 80
+              protocol: TCP
+          livenessProbe:
+            httpGet:
+              path: /
+              port: http
+          readinessProbe:
+            httpGet:
+              path: /
+              port: http
+          resources:
+            {{- toYaml .Values.resources | nindent 12 }}
+      {{- with .Values.nodeSelector }}
+      nodeSelector:
+        {{- toYaml . | nindent 8 }}
+      {{- end }}
+    {{- with .Values.affinity }}
+      affinity:
+        {{- toYaml . | nindent 8 }}
+    {{- end }}
+    {{- with .Values.tolerations }}
+      tolerations:
+        {{- toYaml . | nindent 8 }}
+    {{- end }}

examples/kubernetes/testdata/mychart/templates/ingress.yaml

@@ -0,0 +1,41 @@
+{{- if .Values.ingress.enabled -}}
+{{- $fullName := include "mychart.fullname" . -}}
+{{- $svcPort := .Values.service.port -}}
+{{- if semverCompare ">=1.14-0" .Capabilities.KubeVersion.GitVersion -}}
+apiVersion: networking.k8s.io/v1beta1
+{{- else -}}
+apiVersion: extensions/v1beta1
+{{- end }}
+kind: Ingress
+metadata:
+  name: {{ $fullName }}
+  labels:
+    {{- include "mychart.labels" . | nindent 4 }}
+  {{- with .Values.ingress.annotations }}
+  annotations:
+    {{- toYaml . | nindent 4 }}
+  {{- end }}
+spec:
+{{- if .Values.ingress.tls }}
+  tls:
+  {{- range .Values.ingress.tls }}
+    - hosts:
+      {{- range .hosts }}
+        - {{ . | quote }}
+      {{- end }}
+      secretName: {{ .secretName }}
+  {{- end }}
+{{- end }}
+  rules:
+  {{- range .Values.ingress.hosts }}
+    - host: {{ .host | quote }}
+      http:
+        paths:
+        {{- range .paths }}
+          - path: {{ . }}
+            backend:
+              serviceName: {{ $fullName }}
+              servicePort: {{ $svcPort }}
+        {{- end }}
+  {{- end }}
+{{- end }}

examples/kubernetes/testdata/mychart/templates/service.yaml

@@ -0,0 +1,15 @@
+apiVersion: v1
+kind: Service
+metadata:
+  name: {{ include "mychart.fullname" . }}
+  labels:
+    {{- include "mychart.labels" . | nindent 4 }}
+spec:
+  type: {{ .Values.service.type }}
+  ports:
+    - port: {{ .Values.service.port }}
+      targetPort: http
+      protocol: TCP
+      name: http
+  selector:
+    {{- include "mychart.selectorLabels" . | nindent 4 }}

examples/kubernetes/testdata/mychart/templates/serviceaccount.yaml

@@ -0,0 +1,12 @@
+{{- if .Values.serviceAccount.create -}}
+apiVersion: v1
+kind: ServiceAccount
+metadata:
+  name: {{ include "mychart.serviceAccountName" . }}
+  labels:
+    {{- include "mychart.labels" . | nindent 4 }}
+  {{- with .Values.serviceAccount.annotations }}
+  annotations:
+    {{- toYaml . | nindent 4 }}
+  {{- end }}
+{{- end -}}

examples/kubernetes/testdata/mychart/templates/tests/test-connection.yaml

@@ -0,0 +1,15 @@
+apiVersion: v1
+kind: Pod
+metadata:
+  name: "{{ include "mychart.fullname" . }}-test-connection"
+  labels:
+    {{- include "mychart.labels" . | nindent 4 }}
+  annotations:
+    "helm.sh/hook": test-success
+spec:
+  containers:
+    - name: wget
+      image: busybox
+      command: ['wget']
+      args: ['{{ include "mychart.fullname" . }}:{{ .Values.service.port }}']
+  restartPolicy: Never

examples/kubernetes/testdata/mychart/values.yaml

@@ -0,0 +1,68 @@
+# Default values for mychart.
+# This is a YAML-formatted file.
+# Declare variables to be passed into your templates.
+
+replicaCount: 1
+
+image:
+  repository: nginx
+  pullPolicy: IfNotPresent
+
+imagePullSecrets: []
+nameOverride: ""
+fullnameOverride: ""
+
+serviceAccount:
+  # Specifies whether a service account should be created
+  create: true
+  # Annotations to add to the service account
+  annotations: {}
+  # The name of the service account to use.
+  # If not set and create is true, a name is generated using the fullname template
+  name:
+
+podSecurityContext: {}
+  # fsGroup: 2000
+
+securityContext: {}
+  # capabilities:
+  #   drop:
+  #   - ALL
+  # readOnlyRootFilesystem: true
+  # runAsNonRoot: true
+  # runAsUser: 1000
+
+service:
+  type: ClusterIP
+  port: 80
+
+ingress:
+  enabled: false
+  annotations: {}
+    # kubernetes.io/ingress.class: nginx
+    # kubernetes.io/tls-acme: "true"
+  hosts:
+    - host: chart-example.local
+      paths: []
+  tls: []
+  #  - secretName: chart-example-tls
+  #    hosts:
+  #      - chart-example.local
+
+resources: {}
+  # We usually recommend not to specify default resources and to leave this as a conscious
+  # choice for the user. This also increases chances charts run on environments with little
+  # resources, such as Minikube. If you do want to specify resources, uncomment the following
+  # lines, adjust them as necessary, and remove the curly braces after 'resources:'.
+  # limits:
+  #   cpu: 100m
+  #   memory: 128Mi
+  # requests:
+  #   cpu: 100m
+  #   memory: 128Mi
+
+nodeSelector: {}
+
+tolerations: []
+
+affinity: {}

stdlib/aws/eks/code.cue

@@ -2,7 +2,8 @@ package eks
 
 #Code: #"""
 	[ -e /cache/bin/kubectl ] || {
-	    curl -sfL https://dl.k8s.io/v1.19.9/bin/linux/amd64/kubectl -o /cache/bin/kubectl && chmod +x /cache/bin/kubectl
+	    curl -sfL https://dl.k8s.io/${KUBECTL_VERSION}/bin/linux/amd64/kubectl -o /cache/bin/kubectl \
+		&& chmod +x /cache/bin/kubectl
 	}
 
 	export KUBECONFIG=/kubeconfig

stdlib/aws/eks/eks.cue

@@ -1,6 +1,7 @@
 package eks
 
 import (
+	"dagger.io/dagger"
 	"dagger.io/llb"
 	"dagger.io/aws"
 )
@@ -13,6 +14,9 @@ import (
 	// EKS cluster name
 	clusterName: string
 
+	// Kubectl version
+	version: *"v1.19.9" | string
+
 	// kubeconfig is the generated kube configuration file
 	kubeconfig: {
 		dagger.#Secret
@@ -44,6 +48,7 @@ import (
 					AWS_DEFAULT_OUTPUT:    "json"
 					AWS_PAGER:             ""
 					EKS_CLUSTER:           clusterName
+					KUBECTL_VERSION:       version
 				}
 				mount: {
 					"/cache/aws": "cache"

stdlib/kubernetes/helm/code.cue

@@ -0,0 +1,41 @@
+package helm
+
+#code: #"""
+	# Add the repository
+	helm repo add repository "${HELM_REPO}"
+	helm repo update
+
+	# If the chart is a file, then it's the chart name
+	# If it's a directly, then it's the contents of the cart
+	if [ -f "/helm/chart" ]; then
+	    HELM_CHART="repository/$(cat /helm/chart)"
+	else
+	    HELM_CHART="/helm/chart"
+	fi
+
+	OPTS=""
+	OPTS="$OPTS --timeout "$HELM_TIMEOUT""
+	OPTS="$OPTS --namespace "$KUBE_NAMESPACE""
+	[ "$HELM_WAIT" = "true" ] && OPTS="$OPTS --wait"
+	[ "$HELM_ATOMIC" = "true" ] && OPTS="$OPTS --atomic"
+	[ -f "/helm/values.yaml" ] && OPTS="$OPTS -f /helm/values.yaml"
+
+	# Select the namespace
+	kubectl create namespace "$KUBE_NAMESPACE" || true
+
+	case "$HELM_ACTION" in
+	    install)
+	        helm install $OPTS "$HELM_NAME" "$HELM_CHART"
+	    ;;
+	    upgrade)
+	        helm upgrade $OPTS "$HELM_NAME" "$HELM_CHART"
+	    ;;
+	    installOrUpgrade)
+	        helm upgrade $OPTS --install "$HELM_NAME" "$HELM_CHART"
+	    ;;
+	    *)
+	        echo unsupported helm action "$HELM_ACTION"
+	        exit 1
+	    ;;
+	esac
+	"""#

stdlib/kubernetes/helm/helm.cue

@@ -0,0 +1,126 @@
+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.#Exec & {
+			env: HELM_VERSION: version
+			args: [
+				"/bin/bash",
+				"--noprofile",
+				"--norc",
+				"-eo",
+				"pipefail",
+				"-c",
+				#"""
+					# Install Yarn
+					curl -sfL -S https://get.helm.sh/helm-v${HELM_VERSION}-linux-amd64.tar.gz | \
+					    tar -zx -C /tmp && \
+					    mv /tmp/linux-amd64/helm /usr/local/bin && \
+					    chmod +x /usr/local/bin/helm
+					"""#,
+			]
+		},
+		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_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/values.yaml": values
+				}
+				if (chart & dagger.#Artifact) != _|_ {
+					"/helm/chart": from: chart
+				}
+			}
+		},
+	]
+}

stdlib/kubernetes/kubernetes.cue

@@ -0,0 +1,103 @@
+package kubernetes
+
+import (
+	"dagger.io/llb"
+	"dagger.io/dagger"
+	"dagger.io/alpine"
+)
+
+#Kubectl: {
+
+	version: *"v1.19.9" | string
+
+	#code: #"""
+		[ -e /usr/local/bin/kubectl ] || {
+			curl -sfL https://dl.k8s.io/${KUBECTL_VERSION}/bin/linux/amd64/kubectl -o /usr/local/bin/kubectl \
+			&& chmod +x /usr/local/bin/kubectl
+		}
+		"""#
+
+	#compute: [
+		llb.#Load & {
+			from: alpine.#Image & {
+				package: bash: "=5.1.0-r0"
+				package: jq:   "=1.6-r1"
+				package: curl: "=7.74.0-r1"
+			}
+		},
+		llb.#WriteFile & {
+			dest:    "/entrypoint.sh"
+			content: #code
+		},
+		llb.#Exec & {
+			args: [
+				"/bin/bash",
+				"--noprofile",
+				"--norc",
+				"-eo",
+				"pipefail",
+				"/entrypoint.sh",
+			]
+			env: KUBECTL_VERSION: version
+		},
+	]
+}
+
+// Apply a Kubernetes configuration
+#Apply: {
+	// Kubernetes config to deploy
+	source: string | dagger.#Artifact
+
+	// Kubernetes Namespace to deploy to
+	namespace: string
+
+	// Version of kubectl client
+	version: *"v1.19.9" | string
+
+	// Kube config file
+	kubeconfig: dagger.#Secret
+
+	#code: #"""
+		kubectl create namespace "$KUBE_NAMESPACE" || true
+		kubectl --namespace "$KUBE_NAMESPACE" apply -R -f /source
+		"""#
+
+	#compute: [
+		llb.#Load & {
+			from: #Kubectl & {"version": version}
+		},
+		llb.#WriteFile & {
+			dest:    "/entrypoint.sh"
+			content: #code
+		},
+		llb.#WriteFile & {
+			dest:    "/kubeconfig"
+			content: kubeconfig
+			mode:    0o600
+		},
+		if (source & string) != _|_ {
+			llb.#WriteFile & {
+				dest:    "/source"
+				content: source
+			}
+		},
+		llb.#Exec & {
+			always: true
+			args: [
+				"/bin/bash",
+				"--noprofile",
+				"--norc",
+				"-eo",
+				"pipefail",
+				"/entrypoint.sh",
+			]
+			env: {
+				KUBECONFIG:     "/kubeconfig"
+				KUBE_NAMESPACE: namespace
+			}
+			if (source & dagger.#Artifact) != _|_ {
+				mount: "/source": from: source
+			}
+		},
+	]
+}