create K8S cluster by TOSCA

Issue-ID: OOM-63
Change-Id: I1506e856328c5fd973a0de140982d8b1bbbac546
Signed-off-by: Nicolas Hu <jh245g@att.com>

1 files changed, 175 insertions, 0 deletions

diff --git a/TOSCA/kubernetes-cluster-TOSCA/scripts/kubernetes_master/configure.py b/TOSCA/kubernetes-cluster-TOSCA/scripts/kubernetes_master/configure.py
new file mode 100644
index 0000000000..7d5dffcc57
--- /dev/null
+++ b/TOSCA/kubernetes-cluster-TOSCA/scripts/kubernetes_master/configure.py
@@ -0,0 +1,175 @@
+#!/usr/bin/env python
+
+# ============LICENSE_START==========================================
+# ===================================================================
+# Copyright © 2017 AT&T
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#         http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#============LICENSE_END============================================
+
+# This script will be executed on Kubernetes master host. It will initialize the master, and install a pod network.
+
+import pwd
+import grp
+import os
+import re
+import getpass
+import subprocess
+from cloudify import ctx
+from cloudify.exceptions import OperationRetry
+from cloudify_rest_client.exceptions import CloudifyClientError
+
+JOIN_COMMAND_REGEX = '^kubeadm join[\sA-Za-z0-9\.\:\-\_]*'
+BOOTSTRAP_TOKEN_REGEX = '[a-z0-9]{6}.[a-z0-9]{16}'
+IP_PORT_REGEX = '[0-9]+(?:\.[0-9]+){3}:[0-9]+'
+NOT_SHA_REGEX='^(?!.*sha256)'
+JCRE_COMPILED = re.compile(JOIN_COMMAND_REGEX)
+BTRE_COMPILED = re.compile(BOOTSTRAP_TOKEN_REGEX)
+IPRE_COMPILED = re.compile(IP_PORT_REGEX)
+SHA_COMPILED=re.compile(NOT_SHA_REGEX)
+
+def execute_command(_command):
+
+    ctx.logger.debug('_command {0}.'.format(_command))
+
+    subprocess_args = {
+        'args': _command.split(),
+        'stdout': subprocess.PIPE,
+        'stderr': subprocess.PIPE
+    }
+
+    ctx.logger.debug('subprocess_args {0}.'.format(subprocess_args))
+
+    process = subprocess.Popen(**subprocess_args)
+    output, error = process.communicate()
+
+    ctx.logger.debug('command: {0} '.format(_command))
+    ctx.logger.debug('output: {0} '.format(output))
+    ctx.logger.debug('error: {0} '.format(error))
+    ctx.logger.debug('process.returncode: {0} '.format(process.returncode))
+
+    if process.returncode:
+        ctx.logger.error('Running `{0}` returns error.'.format(_command))
+        return False
+
+    return output
+
+
+def cleanup_and_retry():
+    reset_cluster_command = 'sudo kubeadm reset'
+    output = execute_command(reset_cluster_command)
+    ctx.logger.info('reset_cluster_command {1}'.format(reset_cluster_command, output))
+    raise OperationRetry('Restarting kubernetes because of a problem.')
+
+
+def configure_admin_conf():
+    # Add the kubeadmin config to environment
+    agent_user = getpass.getuser()
+    uid = pwd.getpwnam(agent_user).pw_uid
+    gid = grp.getgrnam('docker').gr_gid
+    admin_file_dest = os.path.join(os.path.expanduser('~'), 'admin.conf')
+
+    execute_command('sudo cp {0} {1}'.format('/etc/kubernetes/admin.conf', admin_file_dest))
+    execute_command('sudo chown {0}:{1} {2}'.format(uid, gid, admin_file_dest))
+
+    with open(os.path.join(os.path.expanduser('~'), '.bashrc'), 'a') as outfile:
+        outfile.write('export KUBECONFIG=$HOME/admin.conf')
+    os.environ['KUBECONFIG'] = admin_file_dest
+
+
+def setup_secrets(_split_master_port, _bootstrap_token):
+    master_ip = split_master_port[0]
+    master_port = split_master_port[1]
+    ctx.instance.runtime_properties['master_ip'] = _split_master_port[0]
+    ctx.instance.runtime_properties['master_port'] = _split_master_port[1]
+    ctx.instance.runtime_properties['bootstrap_token'] = _bootstrap_token
+    from cloudify import manager
+    cfy_client = manager.get_rest_client()
+
+    _secret_key = 'kubernetes_master_ip'
+    if cfy_client and not len(cfy_client.secrets.list(key=_secret_key)) == 1:
+        cfy_client.secrets.create(key=_secret_key, value=master_ip)
+    else:
+        cfy_client.secrets.update(key=_secret_key, value=master_ip)
+    ctx.logger.info('Set secret: {0}.'.format(_secret_key))
+
+    _secret_key = 'kubernetes_master_port'
+    if cfy_client and not len(cfy_client.secrets.list(key=_secret_key)) == 1:
+        cfy_client.secrets.create(key=_secret_key, value=master_port)
+    else:
+        cfy_client.secrets.update(key=_secret_key, value=master_port)
+    ctx.logger.info('Set secret: {0}.'.format(_secret_key))
+
+    _secret_key = 'bootstrap_token'
+    if cfy_client and not len(cfy_client.secrets.list(key=_secret_key)) == 1:
+        cfy_client.secrets.create(key=_secret_key, value=_bootstrap_token)
+    else:
+        cfy_client.secrets.update(key=_secret_key, value=_bootstrap_token)
+    ctx.logger.info('Set secret: {0}.'.format(_secret_key))
+
+
+if __name__ == '__main__':
+
+    ctx.instance.runtime_properties['KUBERNETES_MASTER'] = True
+    cniCommand1=subprocess.Popen(["sudo", "sysctl", 'net.bridge.bridge-nf-call-iptables=1'], stdout=subprocess.PIPE)
+    # Start Kubernetes Master
+    ctx.logger.info('Attempting to start Kubernetes master.')
+    start_master_command = 'sudo kubeadm init'
+    start_output = execute_command(start_master_command)
+    ctx.logger.debug('start_master_command output: {0}'.format(start_output))
+    # Check if start succeeded.
+    if start_output is False or not isinstance(start_output, basestring):
+        ctx.logger.error('Kubernetes master failed to start.')
+        cleanup_and_retry()
+    ctx.logger.info('Kubernetes master started successfully.')
+
+    # Slice and dice the start_master_command start_output.
+    ctx.logger.info('Attempting to retrieve Kubernetes cluster information.')
+    split_start_output = \
+        [line.strip() for line in start_output.split('\n') if line.strip()]
+    del line
+
+    ctx.logger.debug(
+        'Kubernetes master start output, split and stripped: {0}'.format(
+            split_start_output))
+    split_join_command = ''
+    for li in split_start_output:
+        ctx.logger.debug('li in split_start_output: {0}'.format(li))
+        if re.match(JCRE_COMPILED, li):
+            split_join_command = re.split('\s', li)
+    del li
+    ctx.logger.info('split_join_command: {0}'.format(split_join_command))
+
+    if not split_join_command:
+        ctx.logger.error('No join command in split_start_output: {0}'.format(split_join_command))
+        cleanup_and_retry()
+
+    for li in split_join_command:
+        ctx.logger.info('Sorting bits and pieces: li: {0}'.format(li))
+        if (re.match(BTRE_COMPILED, li) and re.match(SHA_COMPILED, li)):
+            bootstrap_token = li
+        elif re.match(IPRE_COMPILED, li):
+            split_master_port = li.split(':')
+    setup_secrets(split_master_port, bootstrap_token)
+    configure_admin_conf()
+
+    weaveCommand1=subprocess.Popen(["kubectl", "version"], stdout=subprocess.PIPE)
+    weaveCommand2=subprocess.Popen(["base64"],stdin=weaveCommand1.stdout, stdout=subprocess.PIPE)
+    kubever = weaveCommand2.communicate()[0]
+    kubever = kubever.replace('\n', '').replace('\r', '')
+    ctx.logger.info("kubever :"+kubever)
+    weaveURL=('https://cloud.weave.works/k8s/net?k8s-version={0}'.format(kubever))
+    ctx.logger.info("weaveURL:" + weaveURL)
+    weaveCommand4=subprocess.Popen(["kubectl","apply","-f",weaveURL],stdout=subprocess.PIPE)
+    weaveResult= weaveCommand4.communicate()[0]
+    ctx.logger.info("weaveResult :"+weaveResult)