Enables containerized overcloud deployments

[apex.git] / apex / builders / overcloud_builder.py

diff --git a/apex/builders/overcloud_builder.py b/apex/builders/overcloud_builder.py
index e7b0796..a84d100 100644 (file)
--- a/apex/builders/overcloud_builder.py
+++ b/apex/builders/overcloud_builder.py
@@ -10,13 +10,17 @@
 # Used to modify overcloud qcow2 image
 
 import logging
+import os
+import tarfile
 
-from apex.builders import common_builder as c_builder
+import apex.builders.common_builder
 from apex.common import constants as con
+from apex.common.exceptions import ApexBuildException
 from apex.virtual import utils as virt_utils
 
 
-def inject_opendaylight(odl_version, image, tmp_dir):
+def inject_opendaylight(odl_version, image, tmp_dir, uc_ip,
+                        os_version, docker_tag=None):
     assert odl_version in con.VALID_ODL_VERSIONS
     # add repo
     if odl_version == 'master':
@@ -28,18 +32,77 @@ def inject_opendaylight(odl_version, image, tmp_dir):
     odl_url = "https://nexus.opendaylight.org/content/repositories" \
               "/opendaylight-{}-epel-7-x86_64-devel/".format(odl_pkg_version)
     repo_name = "opendaylight-{}".format(odl_pkg_version)
-    c_builder.add_repo(odl_url, repo_name, image, tmp_dir)
+    apex.builders.common_builder.add_repo(odl_url, repo_name, image, tmp_dir)
     # download puppet-opendaylight
-    archive = c_builder.create_git_archive(
+    archive = apex.builders.common_builder.create_git_archive(
         repo_url=con.PUPPET_ODL_URL, repo_name='puppet-opendaylight',
         tmp_dir=tmp_dir, branch=branch, prefix='opendaylight/')
     # install ODL, puppet-odl
     virt_ops = [
-        {con.VIRT_INSTALL: 'opendaylight'},
         {con.VIRT_UPLOAD: "{}:/etc/puppet/modules/".format(archive)},
         {con.VIRT_RUN_CMD: 'rm -rf /etc/puppet/modules/opendaylight'},
         {con.VIRT_RUN_CMD: "cd /etc/puppet/modules/ && tar xvf "
                            "puppet-opendaylight.tar"}
     ]
+    if docker_tag:
+        docker_cmds = [
+            "RUN yum remove opendaylight -y",
+            "RUN echo $'[opendaylight]\\n\\",
+            "baseurl={}\\n\\".format(odl_url),
+            "gpgcheck=0\\n\\",
+            "enabled=1' > /etc/yum.repos.d/opendaylight.repo",
+            "RUN yum -y install opendaylight"
+        ]
+        src_img_uri = "{}:8787/{}/centos-binary-{}:" \
+                      "{}".format(uc_ip, os_version, 'opendaylight',
+                                  docker_tag)
+        build_dockerfile('opendaylight', tmp_dir, docker_cmds, src_img_uri)
+    else:
+        virt_ops.append({con.VIRT_INSTALL: 'opendaylight'})
     virt_utils.virt_customize(virt_ops, image)
     logging.info("OpenDaylight injected into {}".format(image))
+
+
+def build_dockerfile(service, tmp_dir, docker_cmds, src_image_uri):
+    """
+    Builds docker file per service and stores it in a
+    tmp_dir/containers/<service> directory.  If the Dockerfile already exists,
+    simply append the docker cmds to it.
+    :param service: name of sub-directory to store Dockerfile in
+    :param tmp_dir: Temporary directory to store the container's dockerfile in
+    :param docker_cmds: List of commands to insert into the dockerfile
+    :param src_image_uri: Docker URI format for where the source image exists
+    :return: None
+    """
+    logging.debug("Building Dockerfile for {} with docker_cmds: {}".format(
+        service, docker_cmds))
+    c_dir = os.path.join(tmp_dir, 'containers')
+    service_dir = os.path.join(c_dir, service)
+    if not os.path.isdir(service_dir):
+        os.makedirs(service_dir, exist_ok=True)
+    from_cmd = "FROM {}\n".format(src_image_uri)
+    service_file = os.path.join(service_dir, 'Dockerfile')
+    assert isinstance(docker_cmds, list)
+    if os.path.isfile(service_file):
+        append_cmds = True
+    else:
+        append_cmds = False
+    with open(service_file, "a+") as fh:
+        if not append_cmds:
+            fh.write(from_cmd)
+        fh.write('\n'.join(docker_cmds))
+
+
+def archive_docker_patches(tmp_dir):
+    """
+    Archives Overcloud docker patches into a tar file for upload to Undercloud
+    :param tmp_dir: temporary directory where containers folder is stored
+    :return: None
+    """
+    container_path = os.path.join(tmp_dir, 'containers')
+    if not os.path.isdir(container_path):
+        raise ApexBuildException("Docker directory for patches not found: "
+                                 "{}".format(container_path))
+    archive_file = os.path.join(tmp_dir, 'docker_patches.tar.gz')
+    with tarfile.open(archive_file, "w:gz") as tar:
+        tar.add(container_path, arcname=os.path.basename(container_path))