added buildkit to build images without docker

Dockerfile

@@ -4,6 +4,7 @@ FROM ubuntu:${ARG_UBUNTU_BASE_IMAGE_TAG}
 WORKDIR /azp
 ENV TARGETARCH=linux-x64
 ENV VSTS_AGENT_VERSION=3.248.0
+ENV BUILDKIT_VERSION=0.19.0
 
 
 # To make it easier for build and release pipelines to run apt-get,
@@ -22,6 +23,7 @@ RUN apt-get update && apt-get install -y --no-install-recommends \
     iputils-ping \
     jq \
     lsb-release \
+    vim \
     software-properties-common \
     && rm -rf /var/lib/apt/lists/*
 RUN apt-get update && apt-get -y upgrade
@@ -34,6 +36,10 @@ RUN printenv \
 RUN curl -LsS https://vstsagentpackage.azureedge.net/agent/${VSTS_AGENT_VERSION}/vsts-agent-${TARGETARCH}-${VSTS_AGENT_VERSION}.tar.gz | tar -xz
 
 
+#Install buildkit
+RUN curl -fsSL -o /tmp/buildkit.tar.gz  https://github.com/moby/buildkit/releases/download/v${BUILDKIT_VERSION}/buildkit-v${BUILDKIT_VERSION}.linux-amd64.tar.gz
+RUN tar -xzf /tmp/buildkit.tar.gz -C /tmp/
+RUN mv /tmp/bin/* /usr/local/bin 
 
 # Install Azure CLI & Azure DevOps extension
 RUN curl -LsS https://aka.ms/InstallAzureCLIDeb | bash \
@@ -92,7 +98,7 @@ RUN apt-get update && apt-get -y upgrade
 
 
 # Copy start script
-COPY ./start.sh .
+COPY src/start.sh .
 RUN chmod +x start.sh
 
 

README.md

@@ -4,7 +4,7 @@
 
 # Azure DevOps Agent on Kubernetes
 
-The easiest and most effective method for creating and managing Azure DevOps agents on Kubernetes, without the need to spend time and effort wrestling with settings! Scale-out as much as is necessary and demolish them gracefully.
+The easiest and most effective method for creating and managing Azure DevOps agents on Kubernetes, without the need to spend time and effort wrestling with settings! Scale-out as much as is necessary and demolish them gracefully
 
 ## Compatibility Matrix
 

chart/templates/buildkit-deployment.yaml

@@ -0,0 +1,67 @@
+{{- if .Values.buildkit.enabled }}
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  labels:
+    app: buildkitd
+  name: buildkitd
+spec:
+  replicas: 3
+  selector:
+    matchLabels:
+      app: buildkitd
+  template:
+    metadata:
+      labels:
+        app: buildkitd
+      annotations:
+        container.apparmor.security.beta.kubernetes.io/buildkitd: unconfined
+    # see buildkit/docs/rootless.md for caveats of rootless mode
+    spec:
+      containers:
+        - name: buildkitd
+          image: moby/buildkit:master-rootless
+          args:
+            - --addr
+            - unix:///run/user/1000/buildkit/buildkitd.sock
+            - --addr
+            - tcp://0.0.0.0:6942
+            - --oci-worker-no-process-sandbox
+          # the probe below will only work after Release v0.6.3
+          readinessProbe:
+            exec:
+              command:
+                - buildctl
+                - debug
+                - workers
+            initialDelaySeconds: 5
+            periodSeconds: 30
+          # the probe below will only work after Release v0.6.3
+          livenessProbe:
+            exec:
+              command:
+                - buildctl
+                - debug
+                - workers
+            initialDelaySeconds: 5
+            periodSeconds: 30
+          securityContext:
+            # Needs Kubernetes >= 1.19
+            seccompProfile:
+              type: Unconfined
+            # To change UID/GID, you need to rebuild the image
+            runAsUser: 1000
+            runAsGroup: 1000
+          ports:
+            - containerPort: 1234
+          volumeMounts:
+            # Dockerfile has `VOLUME /home/user/.local/share/buildkit` by default too,
+            # but the default VOLUME does not work with rootless on Google's Container-Optimized OS
+            # as it is mounted with `nosuid,nodev`.
+            # https://github.com/moby/buildkit/issues/879#issuecomment-1240347038
+            - mountPath: /home/user/.local/share/buildkit
+              name: buildkitd
+      volumes:
+        - name: buildkitd
+          emptyDir: {}
+{{- end }}

chart/templates/buildkit-service.yaml

@@ -0,0 +1,14 @@
+{{- if .Values.buildkit.enabled }}
+apiVersion: v1
+kind: Service
+metadata:
+  labels:
+    app: buildkitd
+  name: buildkitd
+spec:
+  ports:
+    - port: 6942
+      protocol: TCP
+  selector:
+    app: buildkitd
+{{- end }}

chart/values.yaml

@@ -50,6 +50,8 @@ volumeMounts: []
   # - name: dockersock
   #   mountPath: "/var/run/docker.sock"
 
+buildkit:
+  enabled: false
 
 serviceAccount:
   # The name of the service account to use.