Add an ansible terraform custom image

* Adds install-terraform for installing terraform binaries
* Adds install-ansible for installing ansible binaries
* Adds a ruby-2.3-ansible-2.5.1-terraform-0.11 image

Towards https://gitlab.com/gitlab-org/omnibus-gitlab/issues/3395

.gitlab-ci.yml

@@ -75,6 +75,7 @@ golang-1.10-git-2.14 test: *test_custom
 golang-1.10-git-2.16 test: *test_custom
 golang-1.10-git-2.17 test: *test_custom
 node-8.9-chrome-63.0-yarn-1.2 test: *test_custom
+ruby-2.3-ansible-2.5.1-terraform-0.11 test: *test_custom
 
 www-gitlab-com test: *test_build
 gitlab-qa test: *test_build
@@ -114,6 +115,7 @@ golang-1.10-git-2.14: *build_and_deploy_custom
 golang-1.10-git-2.16: *build_and_deploy_custom
 golang-1.10-git-2.17: *build_and_deploy_custom
 node-8.9-chrome-63.0-yarn-1.2: *build_and_deploy_custom
+ruby-2.3-ansible-2.5.1-terraform-0.11: *build_and_deploy_custom
 
 www-gitlab-com: *build_and_deploy
 gitlab-qa: *build_and_deploy

Dockerfile.custom

@@ -43,6 +43,14 @@ RUN if [ -n "$INSTALL_GOLANG_VERSION" ] ; then /scripts/install-golang "${INSTAL
 ARG POSTGRES_VERSION
 RUN if [ -n "$POSTGRES_VERSION" ] ; then /scripts/install-postgresql; fi
 
+# Ansible
+ARG ANSIBLE_VERSION
+RUN if [ -n "$ANSIBLE_VERSION" ] ; then /scripts/install-ansible $ANSIBLE_VERSION; fi
+
+# Terraform
+ARG TERRAFORM_VERSION
+ARG TERRAFORM_DOWNLOAD_SHA256
+RUN if [ -n "$TERRAFORM_VERSION" ] ; then /scripts/install-terraform $TERRAFORM_VERSION $TERRAFORM_DOWNLOAD_SHA256; fi
 
 RUN locale-gen en_US.UTF-8
 ENV LANG en_US.UTF-8

README.md

@@ -20,7 +20,7 @@ Assuming the image you want to add is called `new-image`....
 
 1. Add a test task: `new-image test: *test_build`
 1. Add a new build task: `new-image: *build_and_deploy`
-1. Add a Dockerfile: `Dockerfile.new-image` 
+1. Add a Dockerfile: `Dockerfile.new-image`
 
 
 ## Use a custom image with versioned features
@@ -29,7 +29,7 @@ To add a new image to the build, edit [`.gitlab-ci.yml`](https://gitlab.com/gitl
 
 With custom images, the name of the image is used to define the contents (as opposed to use a bespoke Dockerfile build).
 
-For this reason, the name needs to be correctly defined. 
+For this reason, the name needs to be correctly defined.
 
 The name is defined as `[feature]-[version]` pairs, separated by `-`.
 
@@ -42,7 +42,7 @@ Here are some example build names:
 The first pair represents the base image and version. So `ruby-2.1-...` will use the `ruby:2.1` base image, while
 `golang-1.8` will use the `golang:1.8` base image.
 
-Each of the following parts represents another feature and version. Available 
+Each of the following parts represents another feature and version. Available
 options are:
 
 1. `golang`
@@ -52,11 +52,13 @@ options are:
 5. `yarn`
 6. `phantomjs`
 7. `postgres`
+8. `terraform`
+9. `ansible`
 
 ### Adding a new build
 
-As an example, if you want to add new image for Ruby 2.4 with `git` 2.14 and `golang` 1.9, 
-the name would be `ruby-2.4-golang-1.9-git-2.14`. 
+As an example, if you want to add new image for Ruby 2.4 with `git` 2.14 and `golang` 1.9,
+the name would be `ruby-2.4-golang-1.9-git-2.14`.
 
 1. Add a test task: `ruby-2.4-golang-1.9-git-2.14 test: *test_custom`
 1. Add a new build task: `ruby-2.4-golang-1.9-git-2.14: *build_and_deploy_custom`

scripts/custom-docker-build

@@ -101,6 +101,23 @@ function print_postgres_args() {
     printf -- "--build-arg POSTGRES_VERSION=%s " "$1"
 }
 
+function print_ansible_args() {
+    printf -- "--build-arg ANSIBLE_VERSION=%s " "$1"
+}
+
+function print_terraform_args() {
+    case "$1" in
+       0.11)
+            TERRAFORM_VERSION=0.11.7
+            TERRAFORM_DOWNLOAD_SHA256=6b8ce67647a59b2a3f70199c304abca0ddec0e49fd060944c26f666298e23418
+            ;;
+        *) echo "Unknown terraform version $1"; exit 1;
+    esac
+
+    printf -- "--build-arg TERRAFORM_VERSION=%s " "$TERRAFORM_VERSION"
+    printf -- "--build-arg TERRAFORM_DOWNLOAD_SHA256=%s " "$TERRAFORM_DOWNLOAD_SHA256"
+}
+
 function parse_arguments() {
     read base
     read base_version
@@ -116,6 +133,8 @@ function parse_arguments() {
             node) print_node_args $version ;;
             yarn) print_yarn_args $version ;;
             postgresql) print_postgres_args $version ;;
+            ansible) print_ansible_args $version ;;
+            terraform) print_terraform_args $version ;;
             *) exit 1;;
         esac
     done

scripts/install-ansible

@@ -0,0 +1,12 @@
+#!/bin/bash
+
+set -xeou pipefail
+
+ANSIBLE_VERSION=$1
+
+apt-get update
+apt-get install -y python-pip python-dev
+apt-get clean -yqq
+
+pip install --upgrade cffi
+pip install "ansible==${ANSIBLE_VERSION}"

scripts/install-terraform

@@ -0,0 +1,13 @@
+#!/bin/bash
+
+set -xeou pipefail
+
+TERRAFORM_VERSION=${1}
+TERRAFORM_DOWNLOAD_SHA256=${2}
+
+TERRAFORM_DOWNLOAD_URL="https://releases.hashicorp.com/terraform/${TERRAFORM_VERSION}/terraform_${TERRAFORM_VERSION}_linux_amd64.zip"
+
+curl -fsSL "$TERRAFORM_DOWNLOAD_URL" -o terraform.zip
+echo "${TERRAFORM_DOWNLOAD_SHA256} terraform.zip" | sha256sum -c -
+unzip -d /usr/local/bin terraform.zip
+rm terraform.zip