Add crane docker image

Crane is a lightweight 'pull only' container registry
implementation.

TripleO is aiming to replace our use of docker-distribution
with crane for the Undercloud.

Co-Authored-By: Martin André <m.andre@redhat.com>
Change-Id: I59d9521f99243401d7703a3dedc26b5baed2d595

2 files changed, 82 insertions, 0 deletions

diff --git a/docker/crane/Dockerfile.j2 b/docker/crane/Dockerfile.j2
new file mode 100644
index 000000000..c9fa12af2
--- /dev/null
+++ b/docker/crane/Dockerfile.j2
@@ -0,0 +1,68 @@
+FROM {{ namespace }}/{{ image_prefix }}base:{{ tag }}
+LABEL maintainer="{{ maintainer }}" name="{{ image_name }}" build-date="{{ build_date }}"
+
+{% block crane_header %}{% endblock %}
+
+{% import "macros.j2" as macros with context %}
+
+{% if install_type == 'binary' %}
+    {% if base_distro in ['centos', 'rhel'] %}
+
+        {% set crane_packages = [
+                'httpd',
+                'mod_ssl',
+                'mod_wsgi',
+                'mod_xsendfile',
+                'python-crane'
+        ] %}
+
+{{ macros.install_packages(crane_packages | customizable("packages")) }}
+
+RUN sed -i -r 's,^(Listen 80),#\1,' /etc/httpd/conf/httpd.conf \
+    && sed -i -r 's,^(Listen 443),#\1,' /etc/httpd/conf.d/ssl.conf
+
+    {% else %}
+RUN echo 'crane not yet available for {{ base_distro }}' && /bin/false
+    {% endif %}
+
+{% elif install_type == 'source' %}
+    {% if base_distro in ['centos', 'oraclelinux', 'rhel'] %}
+        {% set crane_packages = [
+                'httpd',
+                'mod_ssl',
+                'mod_wsgi',
+                'mod_xsendfile',
+                'python-flask'
+        ] %}
+
+{{ macros.install_packages(crane_packages | customizable("packages")) }}
+
+RUN sed -i -r 's,^(Listen 80),#\1,' /etc/httpd/conf/httpd.conf \
+    && sed -i -r 's,^(Listen 443),#\1,' /etc/httpd/conf.d/ssl.conf
+
+    {% elif base_distro in ['debian', 'ubuntu'] %}
+RUN echo 'crane not yet available for {{ base_distro }}' && /bin/false
+    {% endif %}
+
+{% block crane_source_install_python_pip %}
+RUN curl https://bootstrap.pypa.io/get-pip.py -o get-pip.py \
+    && python get-pip.py \
+    && rm get-pip.py
+{% endblock %}
+
+ADD crane-archive /crane-source
+
+{% set crane_pip_packages = [
+    '/crane'
+] %}
+
+RUN ln -s crane-source/* crane \
+    && {{ macros.install_pip(crane_pip_packages | customizable("pip_packages"), constraints=false) }}
+
+{% endif %}
+
+COPY extend_start.sh /usr/local/bin/kolla_extend_start
+RUN chmod 755 /usr/local/bin/kolla_extend_start
+
+{% block crane_footer %}{% endblock %}
+{% block footer %}{% endblock %}
diff --git a/docker/crane/extend_start.sh b/docker/crane/extend_start.sh
new file mode 100644
index 000000000..ada839e96
--- /dev/null
+++ b/docker/crane/extend_start.sh
@@ -0,0 +1,14 @@
+#!/bin/bash
+
+# Assume the service runs on top of Apache when user is root
+if [[ "$(whoami)" == 'root' ]]; then
+    # NOTE(pbourke): httpd will not clean up after itself in some cases which
+    # results in the container not being able to restart. (bug #1489676, 1557036)
+    if [[ "${KOLLA_BASE_DISTRO}" =~ debian|ubuntu ]]; then
+        # Loading Apache2 ENV variables
+        . /etc/apache2/envvars
+        rm -rf /var/run/apache2/*
+    else
+        rm -rf /var/run/httpd/* /run/httpd/* /tmp/httpd*
+    fi
+fi