create K8S cluster by TOSCA

[oom.git] / TOSCA / kubernetes-cluster-TOSCA / scripts / create.py

diff --git a/TOSCA/kubernetes-cluster-TOSCA/scripts/create.py b/TOSCA/kubernetes-cluster-TOSCA/scripts/create.py
new file mode 100644 (file)
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+++ b/TOSCA/kubernetes-cluster-TOSCA/scripts/create.py
@@ -0,0 +1,93 @@
+#!/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 tack will be triggered after VM created. It will check whether docker is up and running.
+
+import subprocess
+from cloudify import ctx
+from cloudify.exceptions import OperationRetry
+
+
+def check_command(command):
+
+    try:
+        process = subprocess.Popen(
+            command.split()
+        )
+    except OSError:
+        return False
+
+    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 True
+
+
+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('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
+
+
+if __name__ == '__main__':
+
+    # Check if Docker PS works
+    docker = check_command('docker ps')
+    if not docker:
+            raise OperationRetry(
+                'Docker is not present on the system.')
+    ctx.logger.info('Docker is present on the system.')
+
+    # Next check if Cloud Init is running.
+    finished = False
+    ps = execute_command('ps -ef')
+    for line in ps.split('\n'):
+        if '/usr/bin/python /usr/bin/cloud-init modules' in line:
+            raise OperationRetry(
+                'You provided a Cloud-init Cloud Config to configure instances. '
+                'Waiting for Cloud-init to complete.')
+    ctx.logger.info('Cloud-init finished.')