Use web repo with installed packages for image build

When building images we need to supply repo with built packages
to DIB so it will use when installing packages on the image.
Because DIB is in a chrooted environment we have to use repo in
network. This patch runs a webserver on the directory of the
repository to make it accessible over HTTP on port 8766.

Change-Id: I7b21d3ff1ec7cecab322e599cb929259f5a7256e

roles/build-images/defaults/main.yml

@@ -16,7 +16,7 @@ package_images: true
 overcloud_repo_paths:
   - "$(ls /etc/yum.repos.d/delorean*)"
   - "$(ls /etc/yum.repos.d/CentOS-Ceph-*)"
-  - "$(ls /etc/yum.repos.d/gating.repo)"
+  - "$(ls {{working_dir}}/web-gating.repo)"
 image_build_yaml_paths:
   - "/usr/share/tripleo-common/image-yaml/overcloud-images-centos7.yaml"
   - "/usr/share/tripleo-common/image-yaml/overcloud-images.yaml"

roles/install-built-repo/README.md

@@ -21,6 +21,7 @@ Role Variables
 * `ib_repo_image_inject`: false/true - where to inject and run repo install script on specified image (default: false)
 * `ib_repo_image_path`: path to image, in case of injecting repositories into the image
 * `ib_repo_host`: host where built repo exists, if it's not the same host where this roles runs
+* `ib_create_web_repo`: false/true - Create web accessible repository in directory with built packages (default: false)
 
 Dependencies
 ------------

roles/install-built-repo/defaults/main.yml

@@ -7,6 +7,7 @@ ib_repo_file_path: "{{ ib_repo_workdir}}/gating_repo.tar.gz"
 ib_repo_image_inject: false
 ib_repo_image_path: "{{ ib_repo_workdir }}/overcloud-full.qcow2"
 ib_gating_repo_enabled: true
+ib_create_web_repo: false
 # Configure host where gate_repo files exists, if it's not the host
 # where this role is executed
-# ib_repo_host:
+# ib_repo_host:

roles/install-built-repo/templates/install-built-repo.sh.j2

@@ -1,4 +1,5 @@
 #!/bin/bash
+set -x
 
 mkdir -p /opt
 pushd /opt
@@ -13,6 +14,22 @@ gpgcheck=0
 priority=1
 EOF
 
+{% if ib_create_web_repo|bool %}
+ps -ef | grep -i python | grep SimpleHTTPServer | awk '{print $2}' | xargs --no-run-if-empty kill -9 || true
+pushd /opt/gating_repo
+iptables -I INPUT -p tcp --dport 8766 -j ACCEPT
+nohup python -m SimpleHTTPServer 8766 1>{{ working_dir }}/yum_mirror.log 2>{{ working_dir }}/yum_mirror_error.log &
+popd
+cat > {{ working_dir }}//web-gating.repo << EOF
+[gating-repo]
+name=Gating repository
+baseurl=http://localhost:8766/
+enabled={{ ib_gating_repo_enabled | bool | ternary('1', '0') }}
+gpgcheck=0
+priority=1
+EOF
+{% endif %}
+
 {% if ib_gating_repo_enabled|bool %}
 yum --enablerepo="gating-repo" update -y
 {% endif %}