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-rw-r--r--roles/openshift_cli/library/openshift_container_binary_sync.py131
-rw-r--r--roles/openshift_cli/tasks/main.yml22
-rw-r--r--roles/openshift_cli/templates/openshift.j228
3 files changed, 137 insertions, 44 deletions
diff --git a/roles/openshift_cli/library/openshift_container_binary_sync.py b/roles/openshift_cli/library/openshift_container_binary_sync.py
new file mode 100644
index 000000000..fd290c6fc
--- /dev/null
+++ b/roles/openshift_cli/library/openshift_container_binary_sync.py
@@ -0,0 +1,131 @@
+#!/usr/bin/python
+# -*- coding: utf-8 -*-
+# vim: expandtab:tabstop=4:shiftwidth=4
+# pylint: disable=missing-docstring,invalid-name
+#
+
+import random
+import tempfile
+import shutil
+import os.path
+
+# pylint: disable=redefined-builtin,wildcard-import,unused-wildcard-import
+from ansible.module_utils.basic import *
+
+
+DOCUMENTATION = '''
+---
+module: openshift_container_binary_sync
+short_description: Copies OpenShift binaries out of the given image tag to host system.
+'''
+
+
+class BinarySyncError(Exception):
+ def __init__(self, msg):
+ super(BinarySyncError, self).__init__(msg)
+ self.msg = msg
+
+
+# pylint: disable=too-few-public-methods
+class BinarySyncer(object):
+ """
+ Syncs the openshift, oc, oadm, and kubectl binaries/symlinks out of
+ a container onto the host system.
+ """
+
+ def __init__(self, module, image, tag):
+ self.module = module
+ self.changed = False
+ self.output = []
+ self.bin_dir = '/usr/local/bin'
+ self.image = image
+ self.tag = tag
+ self.temp_dir = None # TBD
+
+ def sync(self):
+ container_name = "openshift-cli-%s" % random.randint(1, 100000)
+ rc, stdout, stderr = self.module.run_command(['docker', 'create', '--name',
+ container_name, '%s:%s' % (self.image, self.tag)])
+ if rc:
+ raise BinarySyncError("Error creating temporary docker container. stdout=%s, stderr=%s" %
+ (stdout, stderr))
+ self.output.append(stdout)
+ try:
+ self.temp_dir = tempfile.mkdtemp()
+ self.output.append("Using temp dir: %s" % self.temp_dir)
+
+ rc, stdout, stderr = self.module.run_command(['docker', 'cp', "%s:/usr/bin/openshift" % container_name,
+ self.temp_dir])
+ if rc:
+ raise BinarySyncError("Error copying file from docker container: stdout=%s, stderr=%s" %
+ (stdout, stderr))
+
+ rc, stdout, stderr = self.module.run_command(['docker', 'cp', "%s:/usr/bin/oc" % container_name,
+ self.temp_dir])
+ if rc:
+ raise BinarySyncError("Error copying file from docker container: stdout=%s, stderr=%s" %
+ (stdout, stderr))
+
+ self._sync_binary('openshift')
+
+ # In older versions, oc was a symlink to openshift:
+ if os.path.islink(os.path.join(self.temp_dir, 'oc')):
+ self._sync_symlink('oc', 'openshift')
+ else:
+ self._sync_binary('oc')
+
+ # Ensure correct symlinks created:
+ self._sync_symlink('kubectl', 'openshift')
+ self._sync_symlink('oadm', 'openshift')
+ finally:
+ shutil.rmtree(self.temp_dir)
+ self.module.run_command(['docker', 'rm', container_name])
+
+ def _sync_symlink(self, binary_name, link_to):
+ """ Ensure the given binary name exists and links to the expected binary. """
+ link_path = os.path.join(self.bin_dir, binary_name)
+ link_dest = os.path.join(self.bin_dir, binary_name)
+ if not os.path.exists(link_path) or \
+ not os.path.islink(link_path) or \
+ os.path.realpath(link_path) != os.path.realpath(link_dest):
+ if os.path.exists(link_path):
+ os.remove(link_path)
+ os.symlink(link_to, os.path.join(self.bin_dir, binary_name))
+ self.output.append("Symlinked %s to %s." % (link_path, link_dest))
+ self.changed = True
+
+ def _sync_binary(self, binary_name):
+ src_path = os.path.join(self.temp_dir, binary_name)
+ dest_path = os.path.join(self.bin_dir, binary_name)
+ incoming_checksum = self.module.run_command(['sha256sum', src_path])[1]
+ if not os.path.exists(dest_path) or self.module.run_command(['sha256sum', dest_path])[1] != incoming_checksum:
+ shutil.move(src_path, dest_path)
+ self.output.append("Moved %s to %s." % (src_path, dest_path))
+ self.changed = True
+
+
+def main():
+ module = AnsibleModule(
+ argument_spec=dict(
+ image=dict(required=True),
+ tag=dict(required=True),
+ ),
+ supports_check_mode=True
+ )
+
+ image = module.params['image']
+ tag = module.params['tag']
+
+ binary_syncer = BinarySyncer(module, image, tag)
+
+ try:
+ binary_syncer.sync()
+ except BinarySyncError as ex:
+ module.fail_json(msg=ex.msg)
+
+ return module.exit_json(changed=binary_syncer.changed,
+ output=binary_syncer.output)
+
+
+if __name__ == '__main__':
+ main()
diff --git a/roles/openshift_cli/tasks/main.yml b/roles/openshift_cli/tasks/main.yml
index 4d6219b94..11c73b25c 100644
--- a/roles/openshift_cli/tasks/main.yml
+++ b/roles/openshift_cli/tasks/main.yml
@@ -6,24 +6,14 @@
- name: Pull CLI Image
command: >
docker pull {{ openshift.common.cli_image }}:{{ openshift_image_tag }}
+ register: pull_result
+ changed_when: "'Downloaded newer image' in pull_result.stdout"
when: openshift.common.is_containerized | bool
-- name: Create /usr/local/bin/openshift cli wrapper
- template:
- src: openshift.j2
- dest: /usr/local/bin/openshift
- mode: 0755
- when: openshift.common.is_containerized | bool
-
-- name: Create client symlinks
- file:
- path: "{{ item }}"
- state: link
- src: /usr/local/bin/openshift
- with_items:
- - /usr/local/bin/oadm
- - /usr/local/bin/oc
- - /usr/local/bin/kubectl
+- name: Copy client binaries/symlinks out of CLI image for use on the host
+ openshift_container_binary_sync:
+ image: "{{ openshift.common.cli_image }}"
+ tag: "{{ openshift_image_tag }}"
when: openshift.common.is_containerized | bool
- name: Reload facts to pick up installed OpenShift version
diff --git a/roles/openshift_cli/templates/openshift.j2 b/roles/openshift_cli/templates/openshift.j2
deleted file mode 100644
index 7786acead..000000000
--- a/roles/openshift_cli/templates/openshift.j2
+++ /dev/null
@@ -1,28 +0,0 @@
-#!/bin/bash
-if [ ! -d ~/.kube ]; then
- mkdir -m 0700 ~/.kube
-fi
-cmd=`basename $0`
-user=`id -u`
-group=`id -g`
-image_tag="{{ openshift_image_tag }}"
-
->&2 echo """
-================================================================================
-ATTENTION: You are running ${cmd} via a wrapper around 'docker run {{ openshift.common.cli_image }}:${image_tag}'.
-This wrapper is intended only to be used to bootstrap an environment. Please
-install client tools on another host once you have granted cluster-admin
-privileges to a user.
-{% if openshift.common.deployment_type in ['openshift-enterprise','atomic-enterprise'] %}
-See https://docs.openshift.com/enterprise/latest/cli_reference/get_started_cli.html
-{% else %}
-See https://docs.openshift.org/latest/cli_reference/get_started_cli.html
-{% endif %}
-=================================================================================
-"""
-
-if [ -n "$image_tag" ]; then
- image_tag=":$image_tag"
-fi
-
-docker run -i --privileged --net=host --user=${user}:${group} -v ~/.kube:/root/.kube -v /tmp:/tmp -v {{ openshift.common.config_base}}:{{ openshift.common.config_base }} -e KUBECONFIG=/root/.kube/config --entrypoint ${cmd} --rm {{ openshift.common.cli_image }}${image_tag} "${@}"