containers: clean-up build code

The containers code use a code path for installing things which
can all be done using existing CI tooling, let's use that rather
than build our stuff from scratch.

Change-Id: I1bcf5dfaac62666f48f7cce70d53244814b0b7db

playbooks/container-builder-setup-gate.yaml

@@ -1,37 +1,25 @@
+---
 - hosts: all
+  roles:
+    - configure-swap
+    - install-docker
   tasks:
-
-    - name: setup swap
-      block:
-        - command: fallocate -l20g /swap
-        - file:
-            path: /swap
-            mode: 0600
-        - command: mkswap /swap
-        - command: swapon /swap
-      become: True
-
-    - name: setup logging
-      shell:
-        cmd: |
-          mkdir logs
-          ln -s $(pwd)/logs /tmp/logs
-          mkdir -p /tmp/logs/{ansible,build}
-        executable: /bin/bash
-        chdir: "{{ zuul.project.src_dir }}"
-
-    - name: copy setup script
-      copy:
-        src: "{{ zuul.executor.work_root }}/{{ zuul.project.src_dir }}/tools/install_docker_UBUNTU.sh"
-        dest: /tmp/setup.sh
-        mode: 0755
-
-    - name: run node setup script
-      shell: /tmp/setup.sh
-      become: true
-
-    - name: changing permission of Docker socket to 666
+    - name: Create logging folders
       file:
-        path: /run/docker.sock
-        mode: 666
+        path: "/tmp/logs/{{ item }}"
+        state: directory
+      with_items:
+        - ansible
+        - build
+
+    - name: Link logs output folder
+      file:
+        src: /tmp/logs
+        dest: "{{ zuul.project.src_dir }}/logs"
+        state: link
+
+    - name: Install dependencies
       become: true
+      pip:
+        name: docker
+        state: present

tools/install_docker_UBUNTU.sh

@@ -1,26 +0,0 @@
-#!/bin/bash
-
-set -o xtrace
-set -o errexit
-
-# Setup Docker repo and add signing key
-sudo apt-get update
-sudo apt-get install -y \
-    apt-transport-https \
-    ca-certificates \
-    curl \
-    software-properties-common
-curl -fsSL https://download.docker.com/linux/ubuntu/gpg | sudo apt-key add -
-sudo add-apt-repository "deb [arch=amd64] https://download.docker.com/linux/ubuntu $(lsb_release -cs) stable"
-sudo apt-get update
-sudo apt-get -y install --no-install-recommends docker-ce
-
-sudo systemctl start docker --now
-
-sudo docker info
-
-sudo apt-get install python-pip
-
-sudo pip install docker
-
-echo "Completed $0."