Code for charm-k8s-ovn under sourcecode/JOID/charm-k8s-ovn

Change-Id: I07209b0955436d06cdcd8b19f0dfe8f2c146a36c
Signed-off-by: AakashKT <aakash.kt@research.iiit.ac.in>

3 files changed, 206 insertions, 0 deletions

diff --git a/sourcecode/JOID/charm-k8s-ovn/interfaces/master-config/copyright b/sourcecode/JOID/charm-k8s-ovn/interfaces/master-config/copyright
new file mode 100644
index 0000000..e04f1d3
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+++ b/sourcecode/JOID/charm-k8s-ovn/interfaces/master-config/copyright
@@ -0,0 +1,13 @@
+Copyright 2017 Aakash KT <aakashkt0@gmail.com> <aakash.kt@research.iiit.ac.in>
+
+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.
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diff --git a/sourcecode/JOID/charm-k8s-ovn/interfaces/master-config/interface.yaml b/sourcecode/JOID/charm-k8s-ovn/interfaces/master-config/interface.yaml
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+++ b/sourcecode/JOID/charm-k8s-ovn/interfaces/master-config/interface.yaml
@@ -0,0 +1,4 @@
+name : master-config
+summary : Master config peer relation for OVN charm
+version : 1
+maintainer : Aakash KT <aakashkt0@gmail.com> <aakash.kt@research.iiit.ac.in>
diff --git a/sourcecode/JOID/charm-k8s-ovn/interfaces/master-config/peers.py b/sourcecode/JOID/charm-k8s-ovn/interfaces/master-config/peers.py
new file mode 100644
index 0000000..1cea378
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+++ b/sourcecode/JOID/charm-k8s-ovn/interfaces/master-config/peers.py
@@ -0,0 +1,189 @@
+import os
+import json
+import re
+import sys
+import subprocess
+import time
+import urllib.request as urllib2
+import multiprocessing as mp
+
+from charmhelpers.core import host
+
+from charmhelpers.core.hookenv import (
+    open_port,
+    open_ports,
+    status_set,
+    config,
+    unit_public_ip,
+    unit_private_ip,
+)
+
+from charmhelpers.core.host import (
+    service_start,
+    service_stop,
+    log,
+    mkdir,
+    write_file,
+)
+
+from charmhelpers.fetch import (
+    apt_install,
+    apt_update,
+    apt_upgrade
+)
+
+from charms.reactive.helpers import (
+    mark_invoked,
+    was_invoked,
+)
+
+from charms.reactive import (
+    when,
+    when_not,
+    when_file_changed,
+    hook,
+    RelationBase,
+    scopes,
+    set_state,
+    remove_state
+)
+
+
+
+CONF_FILE = '/tmp';
+
+
+#########################################################################
+# Common functions
+#########################################################################
+
+def run_command(command=None):
+
+    if command is None:
+        return False;
+
+    log('Running Command "%s"' % command);
+    try:
+        return subprocess.check_output(command, shell=True, stderr=subprocess.STDOUT).decode('utf-8').replace('\n', '');
+    except subprocess.CalledProcessError as e:
+        log('Error running "%s" : %s' % (command, e.output));
+
+        return False;
+
+def get_config(key):
+    conf = config(key);
+    return conf;
+
+def retrieve(key):
+    try:
+        conf = open('/tmp/ovn_conf', 'r');
+    except:
+        return '';
+
+    plain_text = conf.read();
+    conf.close();
+    if plain_text == '':
+        return '';
+    else:
+        data = json.loads(plain_text);
+        return data[key];
+
+def store(key, value):
+    conf = open('/tmp/ovn_conf', 'r');
+    plain_text = conf.read();
+    conf.close();
+
+    conf = open('/tmp/ovn_conf', 'w+');
+
+    data = {};
+    if plain_text != '':
+        data = json.loads(plain_text);
+    data[key] = value;
+
+    conf.truncate(0);
+    conf.seek(0, 0);
+    conf.write(json.dumps(data));
+    conf.close();
+
+
+#########################################################################
+# Relation Class
+#########################################################################
+
+class MasterConfigPeer(RelationBase):
+
+    scope = scopes.UNIT;
+
+    @hook("{peers:master-config}-relation-{joined}")
+    def joined(self):
+        conv = self.conversation();
+        conv.set_state("{relation_name}.connected");
+
+    @hook("{peers:master-config}-relation-{changed}")
+    def changed(self):
+        conv = self.conversation();
+        worker_id = conv.get_local(key='worker_id');
+
+        if worker_id != None and conv.get_remote(worker_id):
+            conv.set_state("{relation_name}.master.data.available");
+        elif conv.get_remote('cert_to_sign'):
+            conv.set_state("{relation_name}.worker.cert.available");
+
+    @hook("{peers:master-config}-relation-{departed}")
+    def departed(self):
+        conv = self.conversation();
+
+        conv.remove_state("{relation_name}.connected");
+        conv.remove_state("{relation_name}.master.data.available");
+        conv.remove_state("{relation_name}.worker.cert.available");
+
+    def set_worker_id(self, worker_id):
+        convs = self.conversations();
+
+        for conv in convs:
+            conv.set_local(key='worker_id', value=worker_id);
+
+    def get_worker_data(self):
+        convs = self.conversations();
+
+        final_data = [];
+        for conv in convs:
+            worker_unit = {};
+
+            cert = conv.get_remote('cert_to_sign');
+            worker_hostname = conv.get_remote('worker_hostname');
+
+            worker_unit['cert_to_sign'] = cert;
+            worker_unit['worker_hostname'] = worker_hostname;
+
+            final_data.append(worker_unit);
+
+        return final_data;
+
+    def send_worker_data(self, data):
+        convs = self.conversations();
+
+        for conv in convs:
+            conv.set_remote(data=data);
+
+
+    def send_signed_certs(self, certs):
+        convs = self.conversations();
+        for conv in convs:
+            for key, value in certs.items():
+                data_str = json.dumps(value);
+                conv.set_remote(key=key, value=data_str);
+
+    def get_signed_cert(self, worker_hostname):
+        convs = self.conversations();
+        
+        final = None;
+        for conv in convs:
+            data = conv.get_remote(worker_hostname);
+
+            if data != '' and data != None:
+                data = json.loads(data);
+                final = data;
+                break;
+
+        return final;
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