Updating Dockerfile and readme before v1.0

* 🐳 switching from apt-get to apt, removed unecessary dependancies

* 🐳 extracted args from stages and removed useless symbolic link

* 🍱 added Azure and Terraform logo in resources

* 📝 improved readme: added usage commands, image content, available tags, image size badge

* ✨ added docker run script

* ✏️ corrected typo and sentence in readme

* 👌 review by @pyaillet\nReverted to apt-get as there is no need to use apt-get and it the CLI API is not stable yet; cleaned apt cache after install and do not install recommended packages

Author: bgauduch

Dockerfile

@@ -1,6 +1,9 @@
+ARG TERRAFORM_VERSION=0.11.13
+ARG AZ_CLI_VERSION=2.0.64
+
 # Download Terraform binary
 FROM debian:stretch-20190506-slim as terraform
-ARG TERRAFORM_VERSION=0.11.13
+ARG TERRAFORM_VERSION
 RUN apt-get update
 RUN apt-get install -y curl=7.52.1-5+deb9u9
 RUN apt-get install -y unzip=6.0-21+deb9u1
@@ -10,22 +13,23 @@ RUN unzip -j terraform-${TERRAFORM_VERSION}.zip
 
 # Install az CLI using PIP
 FROM debian:stretch-20190506-slim as azure-cli-pip
-ARG AZ_CLI_VERSION=2.0.64
+ARG AZ_CLI_VERSION
 RUN apt-get update
-RUN apt-get install -y curl=7.52.1-5+deb9u9
 RUN apt-get install -y python3=3.5.3-1
 RUN apt-get install -y python3-pip=9.0.1-2+deb9u1
-RUN ln -s /usr/bin/python3 /usr/bin/python
 RUN pip3 install azure-cli==${AZ_CLI_VERSION}
-# Fix a pyOpenSSL package issue... (see https://github.com/erjosito/ansible-azure-lab/issues/5)
+# Fix an pyOpenSSL package issue... (see https://github.com/erjosito/ansible-azure-lab/issues/5)
 RUN pip3 uninstall -y pyOpenSSL cryptography
 RUN pip3 install pyOpenSSL==19.0.0
 RUN pip3 install cryptography==2.6.1
 
 # Build final image
 FROM debian:stretch-20190506-slim
-RUN apt-get update \
-  && apt-get install -y python3=3.5.3-1 ssl-cert=1.0.39 \
+RUN apt-get update --no-install-recommends \
+  # TODO: Handle potential download issue when adding multiples packages with APT
+  && apt-get install -y python3=3.5.3-1 \
+  && apt-get clean \
+  && rm -rf /var/lib/apt/lists/* \
   && ln -s /usr/bin/python3 /usr/bin/python
 COPY --from=terraform /terraform /usr/local/bin/terraform
 COPY --from=azure-cli-pip /usr/local/bin/az* /usr/local/bin/

README.md

@@ -1,14 +1,49 @@
+[![](https://images.microbadger.com/badges/image/zenika/terraform-azure-cli.svg)](https://microbadger.com/images/zenika/terraform-azure-cli)
+
 # Terraform and Azure CLI Docker image
-Container image including Azure and Terraform CLI tools, build with Docker.
+Docker Image including Azure and Terraform CLI tools.
+
+## Availables Docker image tags
+Repository available on the Docker Hub: [zenika/terraform-azure-cli](https://hub.docker.com/r/zenika/terraform-azure-cli)
+* zenika/terraform-azure-cli:latest - latest image build on master branch
+* zenika/terraform-azure-cli:vX.Y - versionned image build on specific repository tag
 
 ## Motivation
-Many Docker image including the Terraform and Azure CLI exist out there both on the Docker Hub and Github, but they all are quite oversized (600+ Mo).
+Many Docker images including the Terraform and Azure CLI already exist out there, both on the Docker Hub and Github.
+But they all are quite oversized.
+
+The goal is to create a functional, minimalist and lightweight image with these tools in order to reduce network and storage impact.
+
+## What's inside ?
+This image uses [Debian Stretch](https://hub.docker.com/_/debian) as a base.
+
+Tools included:
+
+* Azure CLI **v2.0.64**
+* Terraform CLI **v0.11.13**
 
-The goal is to create a functionnal, minimalist and lightweight image with these tools in order to reduce network impact.
+<p align="center">
+  <a href="https://azure.microsoft.com"><img width="200" src="resources/azure-logo.png"></a>
+  <a href="https://www.terraform.io/"><img width="200" src="resources/terraform-logo.png"></a>
+</p>
 
 ## Usage
 
-### Build
+### Launch the CLI
+Simply launch the container and use the CLI as you would on any other platform:
 ```bash
-./scripts/build.sh
+docker container run -it --rm zenika/terraform-azure-cli
 ```
+
+> The `--rm` flag will completely destroy the container and its data on exit.
+
+### Build the image
+Build the image locally directly from the Dockerfile:
+```bash
+docker image build -t zenika/terraform-azure-cli .
+```
+
+## Roadmap & Contributions
+Please refer to the [github project](https://github.com/Zenika/terraform-azure-cli/projects/1) to track new features.
+
+Do not hesitate to contribute by [filling an issue](https://github.com/Zenika/terraform-azure-cli/issues) or [a PR](https://github.com/Zenika/terraform-azure-cli/pulls) !

resources/azure-logo.png

@@ -1,2 +1,3 @@
 #!/usr/bin/env bash
+
 docker image build -t zenika/terraform-azure-cli .

resources/terraform-logo.png

@@ -0,0 +1,3 @@
+#!/usr/bin/env bash
+
+docker container run -it --rm zenika/terraform-azure-cli