Update Docker containers

Adds setting to ensure Docker is installed on the workspace side. Also gets rid of warnings about debconf and apt-key.

Author: Chuxel

containers/docker-in-docker-compose/.devcontainer/Dockerfile

@@ -6,12 +6,20 @@
 # Note: You can use any Debian/Ubuntu based image you want. 
 FROM debian:9
 
-# Install git, process tools
-RUN apt-get update && apt-get -y install git procps
+# Copy settings file so Docker extension is installed inside the container
+COPY settings.vscode.json /root/.vscode-remote/data/Machine/settings.json
+
+# Configure apt
+ENV DEBIAN_FRONTEND=noninteractive
+RUN apt-get update \
+    && apt-get -y install --no-install-recommends apt-utils 2>&1
+
+# Verify git, process tools installed
+RUN apt-get -y install git procps
 
 # Install Docker CE CLI
 RUN apt-get install -y apt-transport-https ca-certificates curl gnupg-agent software-properties-common lsb-release \
-    && curl -fsSL https://download.docker.com/linux/$(lsb_release -is | tr '[:upper:]' '[:lower:]')/gpg | apt-key add - 2>/dev/null \
+    && curl -fsSL https://download.docker.com/linux/$(lsb_release -is | tr '[:upper:]' '[:lower:]')/gpg | (OUT=$(apt-key add - 2>&1) || echo $OUT) \
     && add-apt-repository "deb [arch=amd64] https://download.docker.com/linux/$(lsb_release -is | tr '[:upper:]' '[:lower:]') $(lsb_release -cs) stable" \
     && apt-get update \
     && apt-get install -y docker-ce-cli
@@ -20,4 +28,5 @@ RUN apt-get install -y apt-transport-https ca-certificates curl gnupg-agent soft
 RUN apt-get autoremove -y \
     && apt-get clean -y \
     && rm -rf /var/lib/apt/lists/*
+ENV DEBIAN_FRONTEND=dialog
 

containers/docker-in-docker-compose/.devcontainer/settings.vscode.json

@@ -0,0 +1,5 @@
+{
+    "remote.extensionKind": {
+        "peterjausovec.vscode-docker": "workspace"
+    }
+}

containers/docker-in-docker-compose/README.md

@@ -2,7 +2,7 @@
 
 ## Summary
 
-*Use Docker Compose to configure access to your local Docker install from inside a container.*
+*Use Docker Compose to configure access to your local Docker install from inside a container. Installs Docker extension in the container along with needed CLIs.*
 
 | Metadata | Value |  
 |----------|-------|
@@ -14,7 +14,9 @@
 
 ## Description
 
-Dev containers can be useful for all types of applications including those that also deploy into a container based-environment. While you can directly build and run the application inside the dev container you create, you may also want to test it by deploying a built container image into your local Docker Desktop instance without affecting your dev container. This example illustrates how you can do this by running CLI commands and using the [Docker VS Code extension](https://marketplace.visualstudio.com/items?itemName=PeterJausovec.vscode-docker) right from inside your dev container.
+Dev containers can be useful for all types of applications including those that also deploy into a container based-environment. While you can directly build and run the application inside the dev container you create, you may also want to test it by deploying a built container image into your local Docker Desktop instance without affecting your dev container.
+
+This example illustrates how you can do this by running CLI commands and using the [Docker VS Code extension](https://marketplace.visualstudio.com/items?itemName=PeterJausovec.vscode-docker) right from inside your dev container.  It installs the Docker extension inside the container so you can use its full feature set with your project.
 
 ## How it works / adapting your existing dev container config
 
@@ -37,7 +39,23 @@ You can adapt your own existing development container Docker Compose setup to su
       - /var/run/docker.sock:/var/run/docker.sock
     ```
 
-3. Press <kbd>F1</kbd> and run **Remote-Containers: Rebuild Container** so the changes take effect.
+3. Add a container specific user settings file that forces the Docker extension to be installed inside the container instead of locally. From `.devcontainer/Dockerfile`:
+
+    ```Dockerfile
+    COPY settings.vscode.json /root/.vscode-remote/data/Machine/settings.json
+    ```
+
+    From `.devcontainer/settings.vscode.json`:
+
+    ```json
+    {
+        "remote.extensionKind": {
+            "peterjausovec.vscode-docker": "workspace"
+        }
+    }
+    ```
+
+4. Press <kbd>F1</kbd> and run **Remote-Containers: Rebuild Container** so the changes take effect.
 
 That's it!
 

containers/docker-in-docker/.devcontainer/Dockerfile

@@ -7,12 +7,20 @@
 # Note: You can use any Debian/Ubuntu based image you want. 
 FROM debian:9
 
-# Install git, process tools
-RUN apt-get update && apt-get -y install git procps
+# Copy settings file so Docker extension is installed inside the container
+COPY settings.vscode.json /root/.vscode-remote/data/Machine/settings.json
+
+# Configure apt
+ENV DEBIAN_FRONTEND=noninteractive
+RUN apt-get update \
+    && apt-get -y install --no-install-recommends apt-utils 2>&1
+
+# Verify git, process tools installed
+RUN apt-get -y install git procps
 
 # Install Docker CE CLI
 RUN apt-get install -y apt-transport-https ca-certificates curl gnupg-agent software-properties-common lsb-release \
-    && curl -fsSL https://download.docker.com/linux/$(lsb_release -is | tr '[:upper:]' '[:lower:]')/gpg | apt-key add - 2>/dev/null \
+    && curl -fsSL https://download.docker.com/linux/$(lsb_release -is | tr '[:upper:]' '[:lower:]')/gpg | (OUT=$(apt-key add - 2>&1) || echo $OUT) \
     && add-apt-repository "deb [arch=amd64] https://download.docker.com/linux/$(lsb_release -is | tr '[:upper:]' '[:lower:]') $(lsb_release -cs) stable" \
     && apt-get update \
     && apt-get install -y docker-ce-cli
@@ -21,4 +29,6 @@ RUN apt-get install -y apt-transport-https ca-certificates curl gnupg-agent soft
 RUN apt-get autoremove -y \
     && apt-get clean -y \
     && rm -rf /var/lib/apt/lists/*
+ENV DEBIAN_FRONTEND=dialog
+
 

containers/docker-in-docker/.devcontainer/settings.vscode.json

@@ -0,0 +1,5 @@
+{
+    "remote.extensionKind": {
+        "peterjausovec.vscode-docker": "workspace"
+    }
+}

containers/docker-in-docker/README.md

@@ -2,7 +2,7 @@
 
 ## Summary
 
-*Access your local Docker install from inside a dev container.*
+*Access your local Docker install from inside a dev container. Installs Docker extension in the container along with needed CLIs.*
 
 | Metadata | Value |  
 |----------|-------|
@@ -14,7 +14,9 @@
 
 ## Description
 
-Dev containers can be useful for all types of applications including those that also deploy into a container based-environment. While you can directly build and run the application inside the dev container you create, you may also want to test it by deploying a built container image into your local Docker Desktop instance without affecting your dev container. This example illustrates how you can do this by running CLI commands and using the [Docker VS Code extension](https://marketplace.visualstudio.com/items?itemName=PeterJausovec.vscode-docker) right from inside your dev container.
+Dev containers can be useful for all types of applications including those that also deploy into a container based-environment. While you can directly build and run the application inside the dev container you create, you may also want to test it by deploying a built container image into your local Docker Desktop instance without affecting your dev container.
+
+This example illustrates how you can do this by running CLI commands and using the [Docker VS Code extension](https://marketplace.visualstudio.com/items?itemName=PeterJausovec.vscode-docker) right from inside your dev container. It installs the Docker extension inside the container so you can use its full feature set with your project.
 
 ## How it works / adapting your existing dev container config
 
@@ -38,7 +40,23 @@ You can adapt your own existing development container Dockerfile to support this
     "runArgs": ["-v","/var/run/docker.sock:/var/run/docker.sock"]
     ```
 
-3. Press <kbd>F1</kbd> and run **Remote-Containers: Rebuild Container** so the changes take effect.
+3. Add a container specific user settings file that forces the Docker extension to be installed inside the container instead of locally. From `.devcontainer/Dockerfile`:
+
+    ```Dockerfile
+    COPY settings.vscode.json /root/.vscode-remote/data/Machine/settings.json
+    ```
+
+    From `.devcontainer/settings.vscode.json`:
+
+    ```json
+    {
+        "remote.extensionKind": {
+            "peterjausovec.vscode-docker": "workspace"
+        }
+    }
+    ```
+
+4. Press <kbd>F1</kbd> and run **Remote-Containers: Rebuild Container** so the changes take effect.
 
 That's it!
 

containers/kubernetes-helm/.devcontainer/Dockerfile

@@ -6,18 +6,26 @@
 # You can use any Debian/Ubuntu based image as abase
 FROM debian:9
 
-# Install git, process tools
-RUN apt-get update && apt-get -y install git procps
+# Copy settings file so Docker extension is installed inside the container
+COPY settings.vscode.json /root/.vscode-remote/data/Machine/settings.json
+
+# Configure apt
+ENV DEBIAN_FRONTEND=noninteractive
+RUN apt-get update \
+    && apt-get -y install --no-install-recommends apt-utils 2>&1
+
+# Verify git, process tools installed
+RUN apt-get -y install git procps
 
 # Install Docker CE CLI
 RUN apt-get install -y apt-transport-https ca-certificates curl gnupg-agent software-properties-common lsb-release \
-    && curl -fsSL https://download.docker.com/linux/$(lsb_release -is | tr '[:upper:]' '[:lower:]')/gpg | apt-key add - 2>/dev/null \
+    && curl -fsSL https://download.docker.com/linux/$(lsb_release -is | tr '[:upper:]' '[:lower:]')/gpg | (OUT=$(apt-key add - 2>&1) || echo $OUT) \
     && add-apt-repository "deb [arch=amd64] https://download.docker.com/linux/$(lsb_release -is | tr '[:upper:]' '[:lower:]') $(lsb_release -cs) stable" \
     && apt-get update \
     && apt-get install -y docker-ce-cli
 
 # Install kubectl
-RUN curl -s https://packages.cloud.google.com/apt/doc/apt-key.gpg | apt-key add - 2>/dev/null \
+RUN curl -s https://packages.cloud.google.com/apt/doc/apt-key.gpg | (OUT=$(apt-key add - 2>&1) || echo $OUT) \
     && echo "deb https://apt.kubernetes.io/ kubernetes-$(lsb_release -cs) main" | tee -a /etc/apt/sources.list.d/kubernetes.list \
     && apt-get update \
     && apt-get install -y kubectl
@@ -37,3 +45,4 @@ RUN echo 'if [ "$SYNC_LOCALHOST_KUBECONFIG" == "true" ]; then \
 RUN apt-get autoremove -y \
     && apt-get clean -y \
     && rm -rf /var/lib/apt/lists/*
+ENV DEBIAN_FRONTEND=dialog

containers/kubernetes-helm/.devcontainer/settings.vscode.json

@@ -0,0 +1,5 @@
+{
+    "remote.extensionKind": {
+        "peterjausovec.vscode-docker": "workspace"
+    }
+}

containers/kubernetes-helm/README.md

@@ -12,11 +12,11 @@
 
 ## Description
 
-Dev containers can be useful for all types of applications including those that also deploy into a container based-environment. While you can directly build and run the application inside the dev container you create, you may also want to test it by deploying a built container image into a local or remote [Kubernetes](https://kubernetes.io/) cluster without affecting your dev container. This example illustrates how you can do this by using CLIs, the [Kubernetes extension](https://marketplace.visualstudio.com/items?itemName=ms-kubernetes-tools.vscode-kubernetes-tools), and the [Docker extension](https://marketplace.visualstudio.com/items?itemName=PeterJausovec.vscode-docker) right from inside your dev container.
+Dev containers can be useful for all types of applications including those that also deploy into a container based-environment. While you can directly build and run the application inside the dev container you create, you may also want to test it by deploying a built container image into a local or remote [Kubernetes](https://kubernetes.io/) cluster without affecting your dev container.
 
-This definition builds up from the [docker-in-docker](../docker-in-docker) container definition to add Kubernetes and Helm support.
+This example illustrates how you can do this by using CLIs ([kubectl](https://kubernetes.io/docs/reference/kubectl/overview/), [Helm](https://helm.sh), Docker), the [Kubernetes extension](https://marketplace.visualstudio.com/items?itemName=ms-kubernetes-tools.vscode-kubernetes-tools), and the [Docker extension](https://marketplace.visualstudio.com/items?itemName=PeterJausovec.vscode-docker) right from inside your dev container.  This definition builds up from the [docker-in-docker](../docker-in-docker) container definition to add Kubernetes and Helm support.  It installs the Docker and Kubernetes extensions inside the container so you can use its full feature set with your project.
 
-The dev container includes the needed CLIs ([kubectl](https://kubernetes.io/docs/reference/kubectl/overview/), [Helm](https://helm.sh), Docker) and syncs your local Kubernetes config (`~/.kube/config` or `%USERPROFILE%\.kube\config`) into the container with the necessary modifications to allow it to interact with anything running on your local machine. This includes interacting with a Kubernetes cluster managed through Docker Desktop or a local Minikube install.
+The dev container also syncs your local Kubernetes config (`~/.kube/config` or `%USERPROFILE%\.kube\config`) into the container with the necessary modifications to allow it to interact with anything running on your local machine whenever the container or a terminal window is started. This includes interacting with a Kubernetes cluster managed through Docker Desktop or a local Minikube install.
 
 ## How it works / adapting your existing dev container config
 
@@ -50,7 +50,7 @@ You can adapt your own existing development container Dockerfile to support this
             "-v", "$HOME/.kube:/root/.kube-localhost"]
     ```
 
-3. Finally, update `.bashrc` to automatically swap out localhost for host.docker.internal in a containr copy of the Kubernetes config. From `.devcontainer/Dockerfile`:
+3. Update `.bashrc` to automatically swap out localhost for host.docker.internal in a containr copy of the Kubernetes config. From `.devcontainer/Dockerfile`:
 
     ```Dockerfile
     RUN echo 'if [ "$SYNC_LOCALHOST_KUBECONFIG" == "true" ]; then \
@@ -60,7 +60,23 @@ You can adapt your own existing development container Dockerfile to support this
             fi' >> $HOME/.bashrc
     ```
 
-3. Press <kbd>F1</kbd> and run **Remote-Containers: Rebuild Container** so the changes take effect.
+5. Add a container specific user settings file that forces the Docker extension to be installed inside the container instead of locally. From `.devcontainer/Dockerfile`:
+
+    ```Dockerfile
+    COPY settings.vscode.json /root/.vscode-remote/data/Machine/settings.json
+    ```
+
+    From `.devcontainer/settings.vscode.json`:
+
+    ```json
+    {
+        "remote.extensionKind": {
+            "peterjausovec.vscode-docker": "workspace"
+        }
+    }
+    ```
+
+6. Press <kbd>F1</kbd> and run **Remote-Containers: Rebuild Container** so the changes take effect.
 
 That's it!