[K8s] Update scripts with etcd and flannel configuration

This patch adds tuning of existing scripts related to
updating etcd binaries from 2.0.13 to 2.2.5

Change-Id: I33eac5abe96449a2a35f7305632b68fd20960f5c

Kubernetes/KubernetesCluster/package/Resources/scripts/init_conf/etcd.conf

@@ -1,8 +1,15 @@
 description "Etcd service"
 author "@jainvipin"
 
+start on (net-device-up
+          and local-filesystems
+          and runlevel [2345])
+
 respawn
 
+# set max open files
+limit nofile 2048 4096
+
 pre-start script
     # see also https://github.com/jainvipin/kubernetes-ubuntu-start
     ETCD=/opt/bin/$UPSTART_JOB
@@ -24,7 +31,4 @@ script
         . /etc/default/$UPSTART_JOB
     fi
     exec "$ETCD" $ETCD_OPTS
-end script
-
-start on runlevel [235]
-stop on runlevel [016]
+end script

Kubernetes/KubernetesCluster/package/Resources/scripts/master-add-member.sh

@@ -2,15 +2,26 @@
 
 # $1 - NAME
 # $2 - IP
+
 count=30
+echo "Adding member $1 to etcd cluster" >> /tmp/etcd.log
 
 while [ $count -gt 0 ]; do
- out=$(/opt/bin/etcdctl member add "$1" "http://$2:7001")
+ /opt/bin/etcdctl cluster-health >> /tmp/etcd.log
  if [ $? -eq 0 ]; then
+   out=$((/opt/bin/etcdctl member add "$1" "http://$2:7001") 2>&1)
+   if [ $? -ne 0 ]; then
+     echo "Member $1 not added. Reason: $out" >> /tmp/etcd.log
+     break
+   fi
+   echo -e "Member $1 has been added\n" >> /tmp/etcd.log
    echo "$out" | grep ETCD_INITIAL_CLUSTER= | cut -f 2 -d '"'
    exit 0
  fi
+ echo "Member $1 not added" >> /tmp/etcd.log
  ((count-- ))
  sleep 2
 done
+
+cat /tmp/etcd.log
 exit 1

Kubernetes/KubernetesCluster/package/Resources/scripts/master-etcd-setup.sh

@@ -15,4 +15,4 @@ cp init_conf/etcd.conf /etc/init/
 chmod +x initd_scripts/*
 cp initd_scripts/etcd /etc/init.d/
 service etcd start
-sleep 5
+sleep 10

Kubernetes/KubernetesCluster/package/Resources/scripts/member-etcd-setup.sh

@@ -4,18 +4,51 @@
 # $2 - IP
 # $3 - ETCD_INITIAL_CLUSTER
 
-service etcd stop
-
 mkdir /var/lib/etcd
-sed -i.bkp "s/%%NAME%%/$1/g" default_scripts/etcd-member
-sed -i.bkp "s/%%IP%%/$2/g" default_scripts/etcd-member
-sed -i.bkp "s#%%CLUSTER_CONFIG%%#$3#g" default_scripts/etcd-member
 
-cp -f default_scripts/etcd-member /etc/default/etcd
-cp init_conf/etcd.conf /etc/init/
-chmod +x initd_scripts/etcd
-cp initd_scripts/etcd /etc/init.d/
+if [[ $(systemctl) ]]; then
+  systemctl stop etcd
 
-service etcd start
+  sed -i.bkp "s/%%NAME%%/$1/g" environ/etcd
+  sed -i.bkp "s/%%IP%%/$2/g" environ/etcd
+  sed -i.bkp "s/%%STATE%%/existing/g" environ/etcd
+  sed -i.bkp "s#%%CLUSTER_CONFIG%%#$3#g" environ/etcd
 
-sleep 30
+  cp -f environ/etcd /etc/default/
+  cp -f systemd/etcd.service /etc/systemd/system/
+
+  systemctl daemon-reload
+  systemctl enable etcd
+  systemctl start etcd
+
+else
+  service etcd stop
+
+  sed -i.bkp "s/%%NAME%%/$1/g" default_scripts/etcd-member
+  sed -i.bkp "s/%%IP%%/$2/g" default_scripts/etcd-member
+  sed -i.bkp "s#%%CLUSTER_CONFIG%%#$3#g" default_scripts/etcd-member
+
+  cp -f default_scripts/etcd-member /etc/default/etcd
+  cp init_conf/etcd.conf /etc/init/
+  chmod +x initd_scripts/etcd
+  cp initd_scripts/etcd /etc/init.d/
+
+  service etcd start
+fi
+
+#check if cluster works well after member adding
+count=30
+
+echo "Registration member $1 in etcd cluster" >> /tmp/etcd.log
+while [ $count -gt 0 ]; do
+ /opt/bin/etcdctl cluster-health >> tmp/etcd.log
+ if [ $? -eq 0 ]; then
+   echo "Member $1 started" >> /tmp/etcd.log
+   sleep 10
+   exit 0
+ fi
+ ((count-- ))
+ sleep 5
+done
+echo "Member $1 is not started" >> /tmp/etcd.log
+exit 1

Kubernetes/KubernetesCluster/package/Resources/scripts/setupFlannelMaster.sh

@@ -1,3 +1,17 @@
 #!/bin/bash
+count=10
 
-/opt/bin/etcdctl mk /coreos.com/network/config '{"Network":"10.200.0.0/16"}'
+echo "Adding flannel configuration to etcd"
+
+command=$((/opt/bin/etcdctl set /coreos.com/network/config '{"Network":"10.200.0.0/16"}') 2>&1)
+
+while [ $count -gt 0 ]; do
+ if [ $command ]; then
+   echo "Flannel is configured on master node" >> /tmp/etcd.log
+   exit 0
+ fi
+ echo "Flannel configuration was not added. Reason: $command"
+ ((count-- ))
+ sleep 5
+done
+exit 1