General layer consolidation in definitions and templates

container-templates/docker-compose/.devcontainer/Dockerfile

@@ -5,30 +5,33 @@
 
 # ********************************************************
 # * Note: A Docker is optional when using Docker Compose *
-# *       but has been included here for completeness.   *
+# * but has been included here for completeness.         *
 # ********************************************************
 
 # Debian and Ubuntu based images are supported. Alpine images are not yet supported.
 FROM debian:9
 
-# Configure apt
+# Avoid warnings by switching to noninteractive
 ENV DEBIAN_FRONTEND=noninteractive
-RUN apt-get update \
-    && apt-get -y install --no-install-recommends apt-utils 2>&1
-
-# Install git, process tools, lsb-release (common in install instructions for CLIs)
-RUN apt-get -y install git procps lsb-release
-
-# *****************************************************
-# * Add steps for installing needed dependencies here *
-# *****************************************************
+# Set the default shell to bash rather than sh
+ENV SHELL /bin/bash
 
-# Clean up
-RUN apt-get autoremove -y \
+# Configure apt and install packages
+RUN apt-get update \
+    && apt-get -y install --no-install-recommends apt-utils 2>&1 \
+    #
+    # Verify git, process tools, lsb-release (common in install instructions for CLIs) installed
+    && apt-get -y install git procps lsb-release \
+    #
+    # *****************************************************
+    # * Add steps for installing needed dependencies here *
+    # *****************************************************
+    #
+    # Clean up
+    && apt-get autoremove -y \
     && apt-get clean -y \
     && rm -rf /var/lib/apt/lists/*
-ENV DEBIAN_FRONTEND=dialog
 
-# Set the default shell to bash rather than sh
-ENV SHELL /bin/bash
+# Switch back to dialog for any ad-hoc use of apt-get
+ENV DEBIAN_FRONTEND=dialog
 

container-templates/dockerfile/.devcontainer/Dockerfile

@@ -6,23 +6,26 @@
 # Debian and Ubuntu based images are supported. Alpine images are not yet supported.
 FROM debian:9
 
-# Configure apt
+# Avoid warnings by switching to noninteractive
 ENV DEBIAN_FRONTEND=noninteractive
-RUN apt-get update \
-    && apt-get -y install --no-install-recommends apt-utils 2>&1
-
-# Install git, process tools, lsb-release (common in install instructions for CLIs)
-RUN apt-get -y install git procps lsb-release
-
-# *****************************************************
-# * Add steps for installing needed dependencies here *
-# ****************************************************
+# Set the default shell to bash rather than sh
+ENV SHELL /bin/bash
 
-# Clean up
-RUN apt-get autoremove -y \
+# Configure apt and install packages
+RUN apt-get update \
+    && apt-get -y install --no-install-recommends apt-utils 2>&1 \
+    #
+    # Verify git, process tools, lsb-release (common in install instructions for CLIs) installed
+    && apt-get -y install git procps lsb-release \
+    #
+    # *****************************************************
+    # * Add steps for installing needed dependencies here *
+    # *****************************************************
+    #
+    # Clean up
+    && apt-get autoremove -y \
     && apt-get clean -y \
     && rm -rf /var/lib/apt/lists/*
-ENV DEBIAN_FRONTEND=dialog
 
-# Set the default shell to bash rather than sh
-ENV SHELL /bin/bash
+# Switch back to dialog for any ad-hoc use of apt-get
+ENV DEBIAN_FRONTEND=dialog

containers/azure-ansible/.devcontainer/Dockerfile

@@ -6,13 +6,17 @@
 # Pick any base image, but if you select node, skip installing node. 😊
 FROM debian:9
 
-# Configure apt
+# Avoid warnings by switching to noninteractive
 ENV DEBIAN_FRONTEND=noninteractive
-RUN apt-get update \
-        && apt-get -y install --no-install-recommends apt-utils 2>&1
+# Set the default shell to bash rather than sh
+ENV SHELL /bin/bash
 
-# Install git, required tools
-RUN apt-get install -y \
+# Configure apt and install packages
+RUN apt-get update \
+    && apt-get -y install --no-install-recommends apt-utils 2>&1 \
+    #
+    # Verify git, required tools installed
+    && apt-get install -y \
         git \
         curl \
         procps \
@@ -21,38 +25,38 @@ RUN apt-get install -y \
         ca-certificates \
         gnupg-agent \
         software-properties-common \
-        lsb-release 2>&1
-
-# [Optional] Install Node.js for Azure Cloud Shell support 
-# Change the "lts/*" in the two lines below to pick a different version
-RUN curl -so- https://raw.githubusercontent.com/creationix/nvm/v0.34.0/install.sh | bash 2>&1 \
-        && /bin/bash -c "source $HOME/.nvm/nvm.sh \
+        lsb-release 2>&1 \
+    #
+    # [Optional] Install Node.js for Azure Cloud Shell support 
+    # Change the "lts/*" in the two lines below to pick a different version
+    && curl -so- https://raw.githubusercontent.com/creationix/nvm/v0.34.0/install.sh | bash 2>&1 \
+    && /bin/bash -c "source $HOME/.nvm/nvm.sh \
         && nvm install lts/* \
-        && nvm alias default lts/*" 2>&1
-
-# [Optional] For local testing instead of cloud shell
-# Install Docker CE CLI. 
-RUN curl -fsSL https://download.docker.com/linux/$(lsb_release -is | tr '[:upper:]' '[:lower:]')/gpg | apt-key add - 2>/dev/null \
-        && 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
-
-# [Optional] For local testing instead of cloud shell
-# Install the Azure CLI
-RUN echo "deb [arch=amd64] https://packages.microsoft.com/repos/azure-cli/ $(lsb_release -cs) main" > /etc/apt/sources.list.d/azure-cli.list \
-        && curl -sL https://packages.microsoft.com/keys/microsoft.asc | apt-key add - 2>/dev/null \
-        && apt-get update \
-        && apt-get install -y azure-cli 
-
-# Install Ansible
-RUN apt-get install -y libssl-dev libffi-dev python-dev python-pip \
-        && pip install ansible[azure]
-
-# Clean up
-RUN apt-get autoremove -y \
-        && apt-get clean -y \
-        && rm -rf /var/lib/apt/lists/*
+        && nvm alias default lts/*" 2>&1 \
+    #
+    # [Optional] For local testing instead of cloud shell
+    # Install Docker CE CLI. 
+    && curl -fsSL https://download.docker.com/linux/$(lsb_release -is | tr '[:upper:]' '[:lower:]')/gpg | apt-key add - 2>/dev/null \
+    && 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 \
+    #
+    # [Optional] For local testing instead of cloud shell
+    # Install the Azure CLI
+    && echo "deb [arch=amd64] https://packages.microsoft.com/repos/azure-cli/ $(lsb_release -cs) main" > /etc/apt/sources.list.d/azure-cli.list \
+    && curl -sL https://packages.microsoft.com/keys/microsoft.asc | apt-key add - 2>/dev/null \
+    && apt-get update \
+    && apt-get install -y azure-cli \
+    #
+    # Install Ansible
+    && apt-get install -y libssl-dev libffi-dev python-dev python-pip \
+    && pip install ansible[azure] \
+    #
+    # Clean up
+    && apt-get autoremove -y \
+    && apt-get clean -y \
+    && rm -rf /var/lib/apt/lists/*
+
+# Switch back to dialog for any ad-hoc use of apt-get
 ENV DEBIAN_FRONTEND=dialog
 
-# Set the default shell to bash instead of sh
-ENV SHELL /bin/bash

containers/azure-blockchain/.devcontainer/Dockerfile

@@ -5,36 +5,39 @@
 
 FROM python:2.7
 
-# Configure apt
+# Avoid warnings by switching to noninteractive
 ENV DEBIAN_FRONTEND=noninteractive
-RUN apt-get update \
-    && apt-get -y install --no-install-recommends apt-utils 2>&1
-
-# Install git, process tools
-RUN apt-get -y install git procps
-
-# Install nodejs
-RUN curl -sL https://deb.nodesource.com/setup_10.x | bash - \
-    && apt-get install -y nodejs
-
-# Install Truffle Suite
-RUN npm i --unsafe-perm -g truffle
-
-# Install Ganache CLI
-RUN npm install -g ganache-cli
+# Set the default shell to bash rather than sh
+ENV SHELL /bin/bash
 
-# Install the Azure CLI
-RUN apt-get install -y apt-transport-https curl gnupg2 lsb-release \
+# Configure apt and install packages
+RUN apt-get update \
+    && apt-get -y install --no-install-recommends apt-utils 2>&1 \
+    #
+    # Verify git, process tools installed
+    && apt-get -y install git procps \
+    #
+    # Install nodejs
+    && curl -sL https://deb.nodesource.com/setup_10.x | bash - \
+    && apt-get install -y nodejs \
+    #
+    # Install Truffle Suite
+    && npm i --unsafe-perm -g truffle \
+    #
+    # Install Ganache CLI
+    && npm install -g ganache-cli \
+    # 
+    # Install the Azure CLI
+    && apt-get install -y apt-transport-https curl gnupg2 lsb-release \
     && echo "deb [arch=amd64] https://packages.microsoft.com/repos/azure-cli/ $(lsb_release -cs) main" > /etc/apt/sources.list.d/azure-cli.list \
     && curl -sL https://packages.microsoft.com/keys/microsoft.asc | apt-key add - 2>/dev/null \
     && apt-get update \
-    && apt-get install -y azure-cli
-
-# Clean up
-RUN apt-get autoremove -y \
+    && apt-get install -y azure-cli \
+    #
+    # Clean up
+    && apt-get autoremove -y \
     && apt-get clean -y \
     && rm -rf /var/lib/apt/lists/*
-ENV DEBIAN_FRONTEND=dialog
 
-# Set the default shell to bash instead of sh
-ENV SHELL /bin/bash
+# Switch back to dialog for any ad-hoc use of apt-get
+ENV DEBIAN_FRONTEND=dialog

containers/azure-cli/.devcontainer/Dockerfile

@@ -5,26 +5,29 @@
 
 FROM debian:9
 
-# Configure apt
+# Avoid warnings by switching to noninteractive
 ENV DEBIAN_FRONTEND=noninteractive
-RUN apt-get update \
-    && apt-get -y install --no-install-recommends apt-utils 2>&1
-
-# Install git, process tools
-RUN apt-get -y install git procps
+# Set the default shell to bash rather than sh
+ENV SHELL /bin/bash
 
-# Install the Azure CLI
-RUN apt-get install -y apt-transport-https curl gnupg2 lsb-release \
+# Configure apt and install packages
+RUN apt-get update \
+    && apt-get -y install --no-install-recommends apt-utils 2>&1 \
+    #
+    # Verify git, process tools installed
+    && apt-get -y install git procps \
+    #
+    # Install the Azure CLI
+    && apt-get install -y apt-transport-https curl gnupg2 lsb-release \
     && echo "deb [arch=amd64] https://packages.microsoft.com/repos/azure-cli/ $(lsb_release -cs) main" > /etc/apt/sources.list.d/azure-cli.list \
     && curl -sL https://packages.microsoft.com/keys/microsoft.asc | apt-key add - 2>/dev/null \
     && apt-get update \
-    && apt-get install -y azure-cli
-
-# Clean up
-RUN apt-get autoremove -y \
+    && apt-get install -y azure-cli \
+    #
+    # Clean up
+    && apt-get autoremove -y \
     && apt-get clean -y \
     && rm -rf /var/lib/apt/lists/*
-ENV DEBIAN_FRONTEND=dialog
 
-# Set the default shell to bash instead of sh
-ENV SHELL /bin/bash
+# Switch back to dialog for any ad-hoc use of apt-get
+ENV DEBIAN_FRONTEND=dialog

containers/azure-functions-dotnetcore-2.1/.devcontainer/Dockerfile

@@ -5,32 +5,35 @@
 
 FROM mcr.microsoft.com/dotnet/core/sdk:2.1
 
-# Configure apt
+# Avoid warnings by switching to noninteractive
 ENV DEBIAN_FRONTEND=noninteractive
-RUN apt-get update \
-    && apt-get -y install --no-install-recommends apt-utils 2>&1
+# Set the default shell to bash rather than sh
+ENV SHELL /bin/bash
 
-# Verify git and needed tools are installed
-RUN apt-get -y install \
+# Configure apt and install packages
+RUN apt-get update \
+    && apt-get -y install --no-install-recommends apt-utils 2>&1 \
+    #
+    # Verify git and needed tools are installed
+    && apt-get -y install \
         git \
         procps \
         curl \
         apt-transport-https \
         gnupg2 \
-        lsb-release
-
-# Install Azure Functions and Azure CLI
-RUN echo "deb [arch=amd64] https://packages.microsoft.com/repos/azure-cli/ $(lsb_release -cs) main" > /etc/apt/sources.list.d/azure-cli.list \
+        lsb-release \
+    #
+    # Install Azure Functions and Azure CLI
+    && echo "deb [arch=amd64] https://packages.microsoft.com/repos/azure-cli/ $(lsb_release -cs) main" > /etc/apt/sources.list.d/azure-cli.list \
     && echo "deb [arch=amd64] https://packages.microsoft.com/repos/microsoft-debian-$(lsb_release -cs)-prod $(lsb_release -cs) main" > /etc/apt/sources.list.d/dotnetdev.list \
     && curl -sL https://packages.microsoft.com/keys/microsoft.asc | (OUT=$(apt-key add - 2>&1) || echo $OUT) \
     && apt-get update \
-    && apt-get install -y azure-cli azure-functions-core-tools
-
-# Clean up
-RUN apt-get autoremove -y \
+    && apt-get install -y azure-cli azure-functions-core-tools \
+    #
+    # Clean up
+    && apt-get autoremove -y \
     && apt-get clean -y \
     && rm -rf /var/lib/apt/lists/*
-ENV DEBIAN_FRONTEND=dialog
 
-# Set the default shell to bash instead of sh
-ENV SHELL /bin/bash
+# Switch back to dialog for any ad-hoc use of apt-get
+ENV DEBIAN_FRONTEND=dialog