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

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

14 files changed, 1484 insertions, 0 deletions

diff --git a/sourcecode/JOID/charm-k8s-ovn/build_ovn.sh b/sourcecode/JOID/charm-k8s-ovn/build_ovn.sh
new file mode 100755
index 0000000..8943091
--- /dev/null
+++ b/sourcecode/JOID/charm-k8s-ovn/build_ovn.sh
@@ -0,0 +1,5 @@
+#!bin/bash
+
+export JUJU_REPOSITORY=$(pwd)
+export LAYER_PATH=$JUJU_REPOSITORY/layers
+export INTERFACE_PATH=$JUJU_REPOSITORY/interfaces
diff --git a/sourcecode/JOID/charm-k8s-ovn/bundle/bundle.yaml b/sourcecode/JOID/charm-k8s-ovn/bundle/bundle.yaml
new file mode 100644
index 0000000..dfe3926
--- /dev/null
+++ b/sourcecode/JOID/charm-k8s-ovn/bundle/bundle.yaml
@@ -0,0 +1,101 @@
+series: xenial
+
+applications:
+
+  kubeapi-load-balancer:
+    charm: "cs:~containers/kubeapi-load-balancer-16"
+    expose: true
+    num_units: 1
+    to:
+      - "3"
+    annotations:
+      gui-x: '450'
+      gui-y: '250'
+
+  kubernetes-master:
+    charm: "cs:~containers/kubernetes-master-35"
+    num_units: 1
+    to:
+      - "0"
+    expose: true
+    options:
+      service-cidr: 192.168.200.0/24
+      channel: 1.5/stable
+    annotations:
+      gui-x: '800'
+      gui-y: '850'
+
+  kubernetes-worker:
+    charm: "cs:~containers/kubernetes-worker-40"
+    num_units: 2
+    to:
+      - "1"
+      - "2"
+    expose: true
+    options:
+      channel: 1.5/stable
+    annotations:
+      gui-x: '100'
+      gui-y: '850'
+
+  ovn:
+    charm: "cs:~aakashkt/ovn-16"
+    options:
+      gateway-physical-interface: "none"
+    annotations:
+      gui-x: '450'
+      gui-y: '750'
+
+  etcd:
+    charm: "cs:~containers/etcd-40"
+    num_units: 1
+    to:
+      - "0"
+    annotations:
+      gui-x: '800'
+      gui-y: '550'
+
+  easyrsa:
+    charm: "cs:~containers/easyrsa-12"
+    num_units: 1
+    to:
+      - "1"
+    annotations:
+      gui-x: '450'
+      gui-y: '550'
+
+relations:
+  - - "kubernetes-master:kube-api-endpoint"
+    - "kubeapi-load-balancer:apiserver"
+  - - "kubernetes-master:loadbalancer"
+    - "kubeapi-load-balancer:loadbalancer"
+  - - "kubernetes-worker:kube-api-endpoint"
+    - "kubeapi-load-balancer:website"
+  - - "kubeapi-load-balancer:certificates"
+    - "easyrsa:client"
+  - - "kubernetes-master:kube-api-endpoint"
+    - "kubernetes-worker:kube-api-endpoint"
+  - - "kubernetes-master:kube-control"
+    - "kubernetes-worker:kube-control"
+  - - "kubernetes-master:cni"
+    - "ovn:cni"
+  - - "kubernetes-worker:cni"
+    - "ovn:cni"
+  - - "etcd:certificates"
+    - "easyrsa:client"
+  - - "kubernetes-worker:certificates"
+    - "easyrsa:client"
+  - - "kubernetes-master:etcd"
+    - "etcd:db"
+  - - "kubernetes-master:certificates"
+    - "easyrsa:client"
+
+machines:
+  "0":
+    series: xenial
+  "1":
+    series: xenial
+  "2":
+    series: xenial
+  "3":
+    series: xenial
\ No newline at end of file
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
--- /dev/null
+++ 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.
\ No newline at end of file
diff --git a/sourcecode/JOID/charm-k8s-ovn/interfaces/master-config/interface.yaml b/sourcecode/JOID/charm-k8s-ovn/interfaces/master-config/interface.yaml
new file mode 100644
index 0000000..2ccf05b
--- /dev/null
+++ 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
--- /dev/null
+++ 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;
\ No newline at end of file
diff --git a/sourcecode/JOID/charm-k8s-ovn/layers/ovn/README.ex b/sourcecode/JOID/charm-k8s-ovn/layers/ovn/README.ex
new file mode 100644
index 0000000..f8f5bc0
--- /dev/null
+++ b/sourcecode/JOID/charm-k8s-ovn/layers/ovn/README.ex
@@ -0,0 +1,21 @@
+# Overview
+
+This charm provides an SDN via the use of OVN and can be used with any principal charm implementing the [kubernetes-cni](https://github.com/juju-solutions/interface-kubernetes-cni) interface.
+
+# Usage
+
+This charm is subordinate.
+
+<code>
+juju deploy ovn
+juju deploy kubernetes-master
+juju deploy kubernetes-worker
+juju add-relation ovn kubernetes-master
+juju add-relation ovn kubernetes-worker
+</code>
+
+# Configuration
+
+The "gateway-physical-interface" option will allow you to choose an interface on which to create the gateway bridge. If unsure, leave it to "none" to use the default interface.
+
+
diff --git a/sourcecode/JOID/charm-k8s-ovn/layers/ovn/config.yaml b/sourcecode/JOID/charm-k8s-ovn/layers/ovn/config.yaml
new file mode 100644
index 0000000..eb1fa21
--- /dev/null
+++ b/sourcecode/JOID/charm-k8s-ovn/layers/ovn/config.yaml
@@ -0,0 +1,5 @@
+options:
+  gateway-physical-interface:
+    type: string
+    default: "none"
+    description: "The interface used by gateway nodes for north-south connectivity"
diff --git a/sourcecode/JOID/charm-k8s-ovn/layers/ovn/copyright b/sourcecode/JOID/charm-k8s-ovn/layers/ovn/copyright
new file mode 100644
index 0000000..e04f1d3
--- /dev/null
+++ b/sourcecode/JOID/charm-k8s-ovn/layers/ovn/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.
\ No newline at end of file
diff --git a/sourcecode/JOID/charm-k8s-ovn/layers/ovn/icon.svg b/sourcecode/JOID/charm-k8s-ovn/layers/ovn/icon.svg
new file mode 100644
index 0000000..7517e0d
--- /dev/null
+++ b/sourcecode/JOID/charm-k8s-ovn/layers/ovn/icon.svg
@@ -0,0 +1,581 @@
+<?xml version="1.0" encoding="UTF-8" standalone="no"?>
+<!-- Created with Inkscape (http://www.inkscape.org/) -->
+
+<svg
+   xmlns:dc="http://purl.org/dc/elements/1.1/"
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diff --git a/sourcecode/JOID/charm-k8s-ovn/layers/ovn/layer.yaml b/sourcecode/JOID/charm-k8s-ovn/layers/ovn/layer.yaml
new file mode 100644
index 0000000..44b8acf
--- /dev/null
+++ b/sourcecode/JOID/charm-k8s-ovn/layers/ovn/layer.yaml
@@ -0,0 +1,2 @@
+includes: ['layer:basic', 'interface:kubernetes-cni', 'interface:master-config']
+repo: 'https://github.com/AakashKT/charm-ovn.git'
diff --git a/sourcecode/JOID/charm-k8s-ovn/layers/ovn/metadata.yaml b/sourcecode/JOID/charm-k8s-ovn/layers/ovn/metadata.yaml
new file mode 100644
index 0000000..767bb13
--- /dev/null
+++ b/sourcecode/JOID/charm-k8s-ovn/layers/ovn/metadata.yaml
@@ -0,0 +1,19 @@
+name: ovn
+summary: SDN via OVN
+maintainer: Aakash <aakashkt0@gmail.com>
+description: |
+  Overlay networking via OVN and OVS
+tags:
+  - networking
+subordinate: true
+requires:
+  cni:
+    interface: kubernetes-cni
+    scope: container
+peers:
+  master-config:
+    interface: master-config
+
+series:
+  - xenial
+  - trusty
diff --git a/sourcecode/JOID/charm-k8s-ovn/layers/ovn/reactive/ovn.py b/sourcecode/JOID/charm-k8s-ovn/layers/ovn/reactive/ovn.py
new file mode 100644
index 0000000..675a3dd
--- /dev/null
+++ b/sourcecode/JOID/charm-k8s-ovn/layers/ovn/reactive/ovn.py
@@ -0,0 +1,491 @@
+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();
+
+
+#########################################################################
+# Hooks and reactive handlers
+#########################################################################
+
+''' Common reactive handlers '''
+
+@when_not('deps.installed')
+def install_deps():
+    status_set('maintenance', 'Installing dependencies');
+
+    conf = open('/tmp/ovn_conf', 'w+');
+    conf.close();
+
+    run_command('sudo apt-get update ; sudo apt-get upgrade ; sudo apt-get install git -y');
+    run_command('sudo apt-get install -y build-essential fakeroot debhelper \
+                    autoconf automake bzip2 libssl-dev docker.io \
+                    openssl graphviz python-all procps \
+                    python-dev python-setuptools python-pip python3 python3.4 \
+                    python-twisted-conch libtool git dh-autoreconf \
+                    linux-headers-$(uname -r) libcap-ng-dev');
+    run_command('sudo pip2 install six');
+
+    status_set('maintenance', 'Configure and make openvswitch');
+    run_command('git clone https://github.com/openvswitch/ovs.git /tmp/ovs');
+
+    os.chdir('/tmp/ovs');
+
+    run_command('./boot.sh');
+    run_command('./configure --prefix=/usr --localstatedir=/var  --sysconfdir=/etc \
+                        --enable-ssl --with-linux=/lib/modules/`uname -r`/build');
+    run_command('make -j3 ; sudo make install ; sudo make modules_install');
+
+    status_set('maintenance', 'Replacing kernel module');
+
+    run_command('sudo mkdir /etc/depmod.d/');
+    run_command('for module in datapath/linux/*.ko; \
+                    do modname="$(basename ${module})" ; \
+                    echo "override ${modname%.ko} * extra" >> "/etc/depmod.d/openvswitch.conf" ; \
+                    echo "override ${modname%.ko} * weak-updates" >> "/etc/depmod.d/openvswitch.conf" ; \
+                    done');
+    run_command('/sbin/modprobe openvswitch');
+
+    run_command('/usr/share/openvswitch/scripts/ovs-ctl start --system-id=$(uuidgen)');
+    status_set('maintenance', 'Open vSwitch Installed');
+
+    run_command('git clone https://github.com/openvswitch/ovn-kubernetes /tmp/ovn-kubernetes');
+    os.chdir('/tmp/ovn-kubernetes');
+    run_command('sudo -H pip2 install .');
+
+    set_state('deps.installed');
+
+
+
+''' Master reactive handlers and functions '''
+
+def get_worker_subnet():
+    ip3 = int(retrieve('ip3'));
+    store('ip3', ip3+1);
+
+    return '192.168.%s.0/24' % ip3;
+
+@when('master.initialised')
+def restart_services():
+    new_interface = retrieve('new_interface');
+    old_interface = retrieve('old_interface');
+
+    run_command('sudo ovn-k8s-watcher --overlay --pidfile \
+                    --log-file -vfile:info -vconsole:emer --detach');
+    run_command('sudo ovn-k8s-gateway-helper --physical-bridge=%s \
+                    --physical-interface=%s \
+                    --pidfile --detach' % (new_interface, old_interface));
+
+@when('master.initialised', 'master-config.worker.cert.available')
+def sign_and_send(mconfig):
+    data = mconfig.get_worker_data();
+    central_ip = get_my_ip();
+    master_hostname = run_command('hostname');
+
+    signed_certs = {};
+    for unit in data:
+        worker_hostname = unit['worker_hostname'];
+
+        if not was_invoked(worker_hostname):
+            mark_invoked(worker_hostname);
+            cert = unit['cert_to_sign'];
+            worker_subnet = get_worker_subnet();
+
+            os.chdir('/tmp/');
+            cert_file = open('/tmp/ovncontroller-req.pem', 'w+');
+            cert_file.truncate(0);
+            cert_file.seek(0, 0);
+            cert_file.write(cert);
+            cert_file.close();
+            run_command('sudo ovs-pki -d /certs/pki -b sign ovncontroller switch --force');
+
+            cert_file = open('ovncontroller-cert.pem', 'r');
+            signed_cert = cert_file.read();
+
+            signed_certs[worker_hostname] = {
+                "central_ip": central_ip,
+                "signed_cert": signed_cert,
+                "master_hostname": master_hostname,
+                "worker_hostname": worker_hostname, 
+                "worker_subnet": worker_subnet,
+            };
+    
+    mconfig.send_signed_certs(signed_certs);
+
+@when('cni.is-master', 'master.initialised')
+@when_not('gateway.installed')
+def install_gateway(cni):
+    status_set('maintenance', 'Initialising gateway');
+
+    run_command('sudo ovs-vsctl set Open_vSwitch . external_ids:k8s-api-server="0.0.0.0:8080"');
+
+    run_command('git clone https://github.com/openvswitch/ovn-kubernetes /tmp/ovn-kubernetes');
+    os.chdir('/tmp/ovn-kubernetes');
+    run_command('sudo pip2 install .');
+
+    old_interface = get_interface(old=True);
+    new_interface = get_interface(old=False);
+
+    op = run_command('ifconfig %s | grep "inet addr:"' % (new_interface));
+    br_ip = op.lstrip().split()[1].replace('addr:', '');
+
+    gateway_ip = run_command('ip route | grep default').split(' ')[2];
+    hostname = run_command('hostname');
+
+    op = run_command('ovn-k8s-overlay gateway-init \
+                    --cluster-ip-subnet="192.168.0.0/16" \
+                    --bridge-interface %s \
+                    --physical-ip %s/32 \
+                    --node-name="%s-gateway" \
+                    --default-gw %s' % (new_interface, br_ip, hostname, gateway_ip));
+    log('Gateway init output: %s' % (op));
+
+    op = run_command('ovn-k8s-gateway-helper --physical-bridge=%s \
+                        --physical-interface=%s --pidfile --detach' % (new_interface, old_interface));
+    log('Gateway Helper start: %s' % (op));
+
+    status_set('active', 'Master subnet : 192.168.1.0/24');
+    set_state('gateway.installed');
+
+@when('cni.is-master', 'master.setup.done')
+@when_not('master.initialised')
+def initialise_master(cni):
+    status_set('maintenance', 'Initialising master network');
+
+    central_ip = get_my_ip();
+    hostname = run_command('hostname');
+
+    run_command('sudo ovs-vsctl set Open_vSwitch . external_ids:k8s-api-server="0.0.0.0:8080"');
+    run_command('sudo ovn-k8s-overlay master-init --cluster-ip-subnet="192.168.0.0/16" \
+                    --master-switch-subnet="192.168.1.0/24" \
+                    --node-name="%s"' % (hostname));
+
+    run_command('sudo ovn-k8s-watcher --overlay --pidfile --log-file -vfile:info \
+                    -vconsole:emer --detach');
+
+    status_set('maintenance', 'Waiting for gateway');
+    set_state('master.initialised');
+
+@when('cni.is-master', 'bridge.setup.done')
+@when_not('master.setup.done')
+def master_setup(cni):
+    status_set('maintenance', 'Setting up master');
+    open_port(6641);
+    open_port(6642);
+    open_port(8080);
+
+    central_ip = get_my_ip();
+    run_command('sudo /usr/share/openvswitch/scripts/ovn-ctl start_northd');
+    run_command('sudo ovn-nbctl set-connection pssl:6641');
+    run_command('sudo ovn-sbctl set-connection pssl:6642');
+
+    os.chdir('/etc/openvswitch');
+    run_command('sudo ovs-pki -d /certs/pki init --force');
+    run_command('sudo cp /certs/pki/switchca/cacert.pem /etc/openvswitch/');
+
+    run_command('sudo ovs-pki req ovnnb --force && sudo ovs-pki self-sign ovnnb --force');
+    run_command('sudo ovn-nbctl set-ssl /etc/openvswitch/ovnnb-privkey.pem \
+                    /etc/openvswitch/ovnnb-cert.pem  /certs/pki/switchca/cacert.pem');
+
+    run_command('sudo ovs-pki req ovnsb --force && sudo ovs-pki self-sign ovnsb --force');
+    run_command('sudo ovn-sbctl set-ssl /etc/openvswitch/ovnsb-privkey.pem \
+                    /etc/openvswitch/ovnsb-cert.pem  /certs/pki/switchca/cacert.pem');
+
+    run_command('sudo ovs-pki req ovncontroller');
+    run_command('sudo ovs-pki -b -d /certs/pki sign ovncontroller switch --force');
+
+    ovn_host_file = open('/etc/default/ovn-host', 'a');
+    ovn_host_file.write('OVN_CTL_OPTS="--ovn-controller-ssl-key=/etc/openvswitch/ovncontroller-privkey.pem  \
+        --ovn-controller-ssl-cert=/etc/openvswitch/ovncontroller-cert.pem \
+        --ovn-controller-ssl-bootstrap-ca-cert=/etc/openvswitch/ovnsb-ca.cert"');
+    ovn_host_file.close();
+
+    run_command('sudo ovs-vsctl set Open_vSwitch . external_ids:ovn-remote="ssl:%s:6642" \
+                    external_ids:ovn-nb="ssl:%s:6641" \
+                    external_ids:ovn-encap-ip=%s \
+                    external_ids:ovn-encap-type="%s"' % (central_ip, central_ip, central_ip, 'geneve'));
+    run_command('sudo /usr/share/openvswitch/scripts/ovn-ctl \
+                    --ovn-controller-ssl-key="/etc/openvswitch/ovncontroller-privkey.pem" \
+                    --ovn-controller-ssl-cert="/etc/openvswitch/ovncontroller-cert.pem" \
+                    --ovn-controller-ssl-bootstrap-ca-cert="/etc/openvswitch/ovnsb-ca.cert" \
+                    restart_controller');
+
+    set_state('master.setup.done');
+
+@when('cni.is-master', 'master.kv.setup')
+@when_not('bridge.setup.done')
+def bridge_setup(cni):
+    status_set('maintenance', 'Setting up new interface');
+
+    interface = get_config('gateway-physical-interface');
+    if interface == 'none' or interface == None:
+        op = run_command('ip route | grep default').split(' ');
+        interface = op[4];
+
+    store('old_interface', interface);
+    store('new_interface', 'br%s' % (interface));
+
+    op = run_command('ovn-k8s-util nics-to-bridge %s' % (interface));
+    log('Bridge create output: %s' % (op));
+
+    op = run_command('dhclient -r br%s' % (interface));
+    op = run_command('dhclient br%s' % (interface));
+
+    status_set('maintenance', 'Waiting to initialise master');
+    set_state('bridge.setup.done');
+
+@when('cni.is-master', 'deps.installed')
+@when_not('master.kv.setup')
+def setup_master_kv(cni):
+    store('ip3', '2');
+
+    set_state('master.kv.setup');
+
+
+''' Worker reactive handlers and functions '''
+
+@when('cni.is-worker', 'worker.data.registered')
+@when_not('k8s.worker.certs.setup')
+def setup_k8s_worker_certs(cni):
+    if os.path.isfile('/root/cdk/kubeconfig') and os.path.isfile('/root/cdk/ca.crt'):
+        set_state('k8s.worker.certs.setup');
+
+        master_hostname = retrieve('master_hostname');
+
+        k8s_api_ip = "%s:6443" % (master_hostname);
+        api_token = run_command('sudo awk \'$1=="token:" {print $2}\' /root/cdk/kubeconfig');
+
+        run_command('sudo cp /root/cdk/ca.crt /etc/openvswitch/k8s-ca.crt');
+        run_command('sudo ovs-vsctl set Open_vSwitch .   \
+                        external_ids:k8s-api-server="https://%s" \
+                        external_ids:k8s-api-token="%s"' % (k8s_api_ip, api_token));
+
+
+@when('cni.is-worker', 'worker.setup.done')
+@when_not('worker.initialised')
+def initialise_worker(cni):
+    status_set('maintenance', 'Initialising worker network');
+
+    local_ip = get_my_ip();
+    worker_subnet = retrieve('worker_subnet');
+    central_ip = retrieve('central_ip');
+    hostname = run_command('hostname').replace('\n', '');
+
+    run_command('ovs-vsctl set Open_vSwitch . \
+                external_ids:k8s-api-server="%s:8080"' % (central_ip));
+    run_command('ovn-k8s-overlay minion-init --cluster-ip-subnet="192.168.0.0/16" \
+                    --minion-switch-subnet="%s" --node-name="%s"' % (worker_subnet, hostname));
+
+    os.chdir('/tmp/');
+    run_command('wget https://github.com/containernetworking/cni/releases/download/v0.5.2/cni-amd64-v0.5.2.tgz');
+    run_command('sudo mkdir -p /opt/cni/bin');
+    run_command('sudo mkdir -p /etc/cni/net.d');
+    os.chdir('/opt/cni/bin/');
+    run_command('sudo tar xvzf /tmp/cni-amd64-v0.5.2.tgz');
+
+    status_set('active', 'Worker subnet : %s' % (worker_subnet));
+    set_state('worker.initialised');
+
+@when('cni.is-worker', 'worker.data.registered')
+@when_not('worker.setup.done')
+def worker_setup(cni):
+    status_set('maintenance', 'Setting up worker');
+    open_port(8080);
+
+    central_ip = retrieve('central_ip');
+    local_ip = get_my_ip();
+
+    run_command('sudo ovs-vsctl set Open_vSwitch . \
+                    external_ids:ovn-remote="ssl:%s:6642" \
+                    external_ids:ovn-nb="ssl:%s:6641" \
+                    external_ids:ovn-encap-ip=%s \
+                    external_ids:ovn-encap-type=%s' % (central_ip, central_ip, local_ip, 'geneve'));
+    
+    ovn_host_file = open('/etc/default/ovn-host', 'a');
+    ovn_host_file.write('OVN_CTL_OPTS="--ovn-controller-ssl-key=/etc/openvswitch/ovncontroller-privkey.pem  \
+                    --ovn-controller-ssl-cert=/etc/openvswitch/ovncontroller-cert.pem \
+                    --ovn-controller-ssl-bootstrap-ca-cert=/etc/openvswitch/ovnsb-ca.cert"');
+    ovn_host_file.close();
+
+    run_command('sudo /usr/share/openvswitch/scripts/ovn-ctl \
+                    --ovn-controller-ssl-key="/etc/openvswitch/ovncontroller-privkey.pem" \
+                    --ovn-controller-ssl-cert="/etc/openvswitch/ovncontroller-cert.pem" \
+                    --ovn-controller-ssl-bootstrap-ca-cert="/etc/openvswitch/ovnsb-ca.cert" \
+                    restart_controller');
+    set_state('worker.setup.done');
+
+@when('cni.is-worker', 'master-config.master.data.available', 'worker.cert.sent')
+@when_not('worker.data.registered')
+def receive_data(cni, mconfig):
+    status_set('maintenance', 'Certificate received')
+    worker_hostname = run_command('hostname');
+
+    data = mconfig.get_signed_cert(worker_hostname);
+    cert = data['signed_cert'];
+    worker_subnet = data['worker_subnet'];
+    master_ip = data['central_ip'];
+    master_hostname = data['master_hostname'];
+
+    store('master_hostname', master_hostname);
+    store('worker_subnet', worker_subnet);
+    store('central_ip', master_ip);
+    cni.set_config(cidr='192.168.0.0/16');
+
+    os.chdir('/etc/openvswitch');
+    cert_file = open('/etc/openvswitch/ovncontroller-cert.pem', 'a');
+    cert_file.write(cert);
+    cert_file.close();
+
+    set_state('worker.data.registered');
+
+@when('cni.is-worker', 'master-config.connected', 'worker.kv.setup')
+@when_not('worker.cert.sent')
+def send_cert(cni, mconfig):
+    worker_hostname = run_command('hostname');
+    mconfig.set_worker_id(worker_hostname);
+
+    os.chdir('/etc/openvswitch');
+    run_command('sudo ovs-pki req ovncontroller');
+
+    req_file = open('ovncontroller-req.pem', 'r');
+    cert = req_file.read();
+    mconfig.send_worker_data({
+        'cert_to_sign': cert,
+        'worker_hostname': worker_hostname
+    });
+
+    status_set('maintenance', 'Waiting for certificate');
+    set_state('worker.cert.sent');
+
+@when('cni.is-worker', 'deps.installed')
+@when_not('worker.kv.setup')
+def setup_worker_kv(cni):
+    hostname = run_command('hostname');
+    interface = get_config('gateway-physical-interface');
+    if interface == 'none' or interface == None:
+        op = run_command('ip route | grep default').split(' ');
+        interface = op[4];
+
+    store('new_interface', interface);
+    store('worker_hostname', hostname);
+    set_state('worker.kv.setup');
+
+
+#########################################################################
+# Helper functions
+#########################################################################
+
+
+def get_my_ip():
+    interface = get_interface(old=False);
+
+    op = run_command('ifconfig %s | grep "inet addr:"' % (interface));
+    br_ip = op.lstrip().split()[1].replace('addr:', '');
+
+    return br_ip;
+
+def get_interface(old):
+    key = 'old_interface' if old == True else 'new_interface';
+    return retrieve(key);
diff --git a/sourcecode/JOID/charm-k8s-ovn/layers/ovn/tests/00-setup b/sourcecode/JOID/charm-k8s-ovn/layers/ovn/tests/00-setup
new file mode 100755
index 0000000..f0616a5
--- /dev/null
+++ b/sourcecode/JOID/charm-k8s-ovn/layers/ovn/tests/00-setup
@@ -0,0 +1,5 @@
+#!/bin/bash
+
+sudo add-apt-repository ppa:juju/stable -y
+sudo apt-get update
+sudo apt-get install amulet python-requests -y
diff --git a/sourcecode/JOID/charm-k8s-ovn/layers/ovn/tests/10-deploy b/sourcecode/JOID/charm-k8s-ovn/layers/ovn/tests/10-deploy
new file mode 100755
index 0000000..1cd905f
--- /dev/null
+++ b/sourcecode/JOID/charm-k8s-ovn/layers/ovn/tests/10-deploy
@@ -0,0 +1,35 @@
+#!/usr/bin/python3
+
+import amulet
+import requests
+import unittest
+
+
+class TestCharm(unittest.TestCase):
+    def setUp(self):
+        self.d = amulet.Deployment()
+
+        self.d.add('OVN')
+        self.d.expose('OVN')
+
+        self.d.setup(timeout=900)
+        self.d.sentry.wait()
+
+        self.unit = self.d.sentry['OVN'][0]
+
+    def test_service(self):
+        # test we can access over http
+        page = requests.get('http://{}'.format(self.unit.info['public-address']))
+        self.assertEqual(page.status_code, 200)
+        # Now you can use self.d.sentry[SERVICE][UNIT] to address each of the units and perform
+        # more in-depth steps. Each self.d.sentry[SERVICE][UNIT] has the following methods:
+        # - .info - An array of the information of that unit from Juju
+        # - .file(PATH) - Get the details of a file on that unit
+        # - .file_contents(PATH) - Get plain text output of PATH file from that unit
+        # - .directory(PATH) - Get details of directory
+        # - .directory_contents(PATH) - List files and folders in PATH on that unit
+        # - .relation(relation, service:rel) - Get relation data from return service
+
+        
+if __name__ == '__main__':
+    unittest.main()