OpenShift Origin-F19

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Fedora 19 is when OpenShift Origin first became a feature.

This page is here to show how to setup OpenShift Origin on Fedora 19 using the packages in Fedora, as opposed to the packages published from upstream. These steps are written out to be done by hand. Yes, people can script and/or puppetize these steps. But these are written out so that people can see, and fine tune them.

Goal: By the end of this, you should have two machines. A broker machine, and one node machine. You should be able to create applications, that will be put on the node machine. You should be able to check the status of those applications. You should be able to point your web browser to the URL of those applications.

Note: There is no web console in Fedora 19. That will be in Fedora 20.

These instructions were created most from the following two places.

Contents

Initial Setup of Broker and Node Machines

ON BOTH BROKER AND NODE

# Start with a Fedora 19 minimal install
yum -y update
# avoid clock skew
yum -y install ntp
/bin/systemctl enable ntpd.service
/bin/systemctl start  ntpd.service
  1. ON BROKER
export DOMAIN="example.com"
export BROKERIP="$(nm-tool | grep Address | grep -v HW | awk '{print $2}')"
export BROKERNAME="broker.example.com"
export NODEIP="--- IP Address from Node machine ---"
export NODENAME="node.example.com"
# Here is the IP Address from Broker machine
nm-tool | grep Address | grep -v HW | awk '{print $2}'
  1. ON NODE
export DOMAIN="example.com"
export BROKERIP="--- IP Address from Broker machine ---"
export BROKERNAME="broker.example.com"
export NODEIP="$(nm-tool | grep Address | grep -v HW | awk '{print $2}')"
export NODENAME="node.example.com"
# Here is the IP Address from Node machine
nm-tool | grep Address | grep -v HW | awk '{print $2}'

Setup and Configure Broker

Broker: Bind DNS

yum -y install bind bind-utils

KEYFILE=/var/named/${DOMAIN}.key
cd /var/named/
dnssec-keygen -a HMAC-MD5 -b 512 -n USER -r /dev/urandom ${DOMAIN}
KEY="$(grep Key: K${DOMAIN}*.private | cut -d ' ' -f 2)"
cd -
rndc-confgen -a -r /dev/urandom
echo $KEY
restorecon -v /etc/rndc.* /etc/named.*
chown -v root:named /etc/rndc.key
chmod -v 640 /etc/rndc.key
echo "forwarders { 8.8.8.8; 8.8.4.4; } ;" >> /var/named/forwarders.conf
restorecon -v /var/named/forwarders.conf
chmod -v 755 /var/named/forwarders.conf
rm -rvf /var/named/dynamic
mkdir -vp /var/named/dynamic
cat <<EOF > /var/named/dynamic/${DOMAIN}.db
\$ORIGIN .
\$TTL 1	; 1 seconds (for testing only)
${DOMAIN} IN SOA ns1.${DOMAIN}. hostmaster.${DOMAIN}. (
                         2011112904 ; serial
                         60         ; refresh (1 minute)
                         15         ; retry (15 seconds)
                         1800       ; expire (30 minutes)
                         10         ; minimum (10 seconds)
                          )
                     NS ns1.${DOMAIN}.
                     MX 10 mail.${DOMAIN}.
\$ORIGIN ${DOMAIN}.
ns1	              A        127.0.0.1

EOF
cat <<EOF > /var/named/${DOMAIN}.key
key ${DOMAIN} {
  algorithm HMAC-MD5;
  secret "${KEY}";
};
EOF
cat /var/named/dynamic/${DOMAIN}.db
cat /var/named/${DOMAIN}.key

chown -Rv named:named /var/named
restorecon -rv /var/named
mv /etc/named.conf /etc/named.conf.openshift
cat <<EOF > /etc/named.conf
// named.conf
//
// Provided by Red Hat bind package to configure the ISC BIND named(8) DNS
// server as a caching only nameserver (as a localhost DNS resolver only).
//
// See /usr/share/doc/bind*/sample/ for example named configuration files.
//

options {
    listen-on port 53 { any; };
    directory "/var/named";
    dump-file "/var/named/data/cache_dump.db";
    statistics-file "/var/named/data/named_stats.txt";
    memstatistics-file "/var/named/data/named_mem_stats.txt";
    allow-query { any; };
    recursion yes;

    /* Path to ISC DLV key */
    bindkeys-file "/etc/named.iscdlv.key";

    // set forwarding to the next nearest server (from DHCP response
    forward only;
    include "forwarders.conf";
};

logging {
    channel default_debug {
        file "data/named.run";
        severity dynamic;
    };
};

// use the default rndc key
include "/etc/rndc.key";
 
controls {
    inet 127.0.0.1 port 953
    allow { 127.0.0.1; } keys { "rndc-key"; };
};

include "/etc/named.rfc1912.zones";

include "${DOMAIN}.key";

zone "${DOMAIN}" IN {
    type master;
    file "dynamic/${DOMAIN}.db";
    allow-update { key ${DOMAIN} ; } ;
};
EOF

cat /etc/named.conf
chown -v root:named /etc/named.conf
restorecon /etc/named.conf

firewall-cmd --add-service=dns
firewall-cmd --permanent --add-service=dns
firewall-cmd --list-all
/bin/systemctl enable named.service
/bin/systemctl start named.service
nsupdate -k ${KEYFILE}
> server 127.0.0.1
> update delete broker.example.com A
> update add **your broker full name ** 180 A **your broker ip address**
(example: update add broker.example.com 180 A 192.168.122.220 )
> send
> quit
ping broker.example.com
dig @127.0.0.1 broker.example.com

Broker: DHCP client and hostname

echo "prepend domain-name-servers **your broker ip address**;" >> /etc/dhcp/dhclient-eth0.conf
echo "supersede host-name \"broker\";" >> /etc/dhcp/dhclient-eth0.conf
echo "supersede domain-name \"example.com\";" >> /etc/dhcp/dhclient-eth0.conf

Broker: hostname

echo "broker.example.com" > /etc/hostname

Broker: MongoDB

yum -y install mongodb-server
vi /etc/mongodb.conf
# Uncomment auth = true
# Add smallfiles = true
/usr/bin/systemctl enable mongod.service
/usr/bin/systemctl status mongod.service
/usr/bin/systemctl start mongod.service
/usr/bin/systemctl status mongod.service
# Testing
mongo
> show dbs
> exit

Broker: QPID

Activemq on F19 isn't ready for OpenShift production. When it is, we'll use that For now we'll use QPID with mcollective.

yum install mcollective-qpid-plugin qpid-cpp-server
firewall-cmd --add-port=5672/tcp
firewall-cmd --permanent --add-port=5672/tcp
firewall-cmd --list-all
/usr/bin/systemctl enable qpidd.service
/usr/bin/systemctl start qpidd.service
/usr/bin/systemctl status qpidd.service

Broker: MCollective client ( using QPID)

yum -y install mcollective-client
mv /etc/mcollective/client.cfg /etc/mcollective/client.cfg.orig

cat <<EOF > /etc/mcollective/client.cfg
topicprefix = /topic/
main_collective = mcollective
collectives = mcollective
libdir = /usr/libexec/mcollective
loglevel = debug
logfile = /var/log/mcollective-client.log

# Plugins
securityprovider = psk
plugin.psk = unset
connector = qpid
plugin.qpid.host=broker.example.com
plugin.qpid.secure=false
plugin.qpid.timeout=5

# Facts
factsource = yaml
plugin.yaml = /etc/mcollective/facts.yaml
EOF

Broker: broker application

yum -y install openshift-origin-broker openshift-origin-broker-util rubygem-openshift-origin-auth-remote-user rubygem-openshift-origin-msg-broker-mcollective rubygem-openshift-origin-dns-bind
sed -i -e "s/ServerName .*$/ServerName broker.example.com/" /etc/httpd/conf.d/000002_openshift_origin_broker_servername.conf 
cat /etc/httpd/conf.d/000002_openshift_origin_broker_servername.conf
/usr/bin/systemctl enable httpd.service
/usr/bin/systemctl enable ntpd.service
/usr/bin/systemctl enable sshd.service
firewall-cmd --add-service=ssh
firewall-cmd --add-service=http
firewall-cmd --add-service=https
firewall-cmd --permanent --add-service=ssh
firewall-cmd --permanent --add-service=http
firewall-cmd --permanent --add-service=https
firewall-cmd --list-all
openssl genrsa -out /etc/openshift/server_priv.pem 2048
openssl rsa -in /etc/openshift/server_priv.pem -pubout > /etc/openshift/server_pub.pem
ssh-keygen -t rsa -b 2048 -f ~/.ssh/rsync_id_rsa
cp -v ~/.ssh/rsync_id_rsa* /etc/openshift/
setsebool -P httpd_unified=on httpd_can_network_connect=on httpd_can_network_relay=on httpd_run_stickshift=on named_write_master_zones=on
fixfiles -R rubygem-passenger restore
fixfiles -R mod_passenger restore
restorecon -rv /var/run
restorecon -rv /usr/share/gems/gems/passenger-*
vi /etc/openshift/broker.conf
# Might not have to do anything but make sure you have the following lines
CLOUD_DOMAIN="example.com"
VALID_GEAR_SIZES="small,medium"

Broker: broker plugins and MongoDB user accounts

cp /usr/share/gems/gems/openshift-origin-auth-remote-user-*/conf/openshift-origin- auth-remote-user.conf.example /etc/openshift/plugins.d/openshift-origin-auth-remote-user.conf
cp /etc/openshift/plugins.d/openshift-origin-msg-broker-mcollective.conf.example /etc/openshift/plugins.d/openshift-origin-msg-broker-mcollective.conf
cd /var/named/
KEY="$(grep Key: K${DOMAIN}*.private | cut -d ' ' -f 2)"
cat $KEYFILE
echo $KEY
cat <<EOF > /etc/openshift/plugins.d/openshift-origin-dns-bind.conf
BIND_SERVER="127.0.0.1"
BIND_PORT=53
BIND_KEYNAME="${DOMAIN}"
BIND_KEYVALUE="${KEY}"
BIND_ZONE="${DOMAIN}"
EOF
cp -v /var/www/openshift/broker/httpd/conf.d/openshift-origin-auth-remote-user-basic.conf.sample /var/www/openshift/broker/httpd/conf.d/openshift-origin-auth-remote-user.conf
htpasswd -c -b -s /etc/openshift/htpasswd demo demo
# Don't forget your password. <demo password>
cat /etc/openshift/htpasswd
grep MONGO /etc/openshift/broker.conf
mongo openshift_broker_dev --eval 'db.addUser("openshift", "mooo")'
# If you are going to change the username and/or password, change broker.conf
yum -y install rubygem-psych
cd /var/www/openshift/broker
gem install mongoid
bundle --local
/usr/bin/systemctl enable openshift-broker.service
/usr/bin/systemctl start httpd.service
/usr/bin/systemctl start openshift-broker.service
/usr/bin/systemctl status openshift-broker.service
curl -k -u demo:demopassword https://localhost/broker/rest/api

Setup and Configure Node

Node: Initial setup/configure

  1. ON BROKER
keyfile=/var/named/${DOMAIN}.key
oo-register-dns -h node -d ${DOMAIN} -n ${NODEIP} -k ${keyfile}
scp /etc/openshift/rsync_id_rsa.pub root@${NODENAME}:/root/.ssh/
  1. ON NODE
cat /root/.ssh/rsync_id_rsa.pub >> /root/.ssh/authorized_keys
rm -f /root/.ssh/rsync_id_rsa.pub
  1. ON BROKER
ssh -i /root/.ssh/rsync_id_rsa root@${NODENAME}
exit

Node: DHCP client

echo "prepend domain-name-servers **your broker ip address**;" >> /etc/dhcp/dhclient-eth0.conf
echo "supersede host-name \"node\";" >> /etc/dhcp/dhclient-eth0.conf
echo "supersede domain-name \"example.com\";" >> /etc/dhcp/dhclient-eth0.conf

Node: hostname

echo "node.example.com" > /etc/hostname

Node: MCollective

  1. ON NODE
yum -y install openshift-origin-msg-node-mcollective
mv /etc/mcollective/server.cfg /etc/mcollective/server.cfg.orig

cat <<EOF > /etc/mcollective/server.cfg
topicprefix = /topic/
main_collective = mcollective
collectives = mcollective
libdir = /usr/libexec/mcollective
logfile = /var/log/mcollective.log
loglevel = debug
daemonize = 1
direct_addressing = n

# Plugins
securityprovider = psk
plugin.psk = unset
connector = qpid
plugin.qpid.host=${BROKERNAME}
plugin.qpid.secure=false
plugin.qpid.timeout=5

# Facts
factsource = yaml
plugin.yaml = /etc/mcollective/facts.yaml
EOF
/bin/systemctl enable mcollective.service
/bin/systemctl start  mcollective.service
  1. ON BROKER
mco ping

Setting up node packages on the node host

  1. ON NODE

yum -y install rubygem-openshift-origin-node rubygem-passenger-native openshift-origin-port-proxy openshift-origin-node-util yum -y install openshift-origin-cartridge-cron-1.4 openshift-origin-cartridge-diy-0.1

firewall-cmd --add-service=ssh firewall-cmd --add-service=http firewall-cmd --add-service=https firewall-cmd --permanent --add-service=ssh firewall-cmd --permanent --add-service=http firewall-cmd --permanent --add-service=https firewall-cmd --list-all

Configuring PAM namespace module, cgropus, and user quotas on the node host

  1. ON NODE
  2. PAM

sed -i -e 's|pam_selinux|pam_openshift|g' /etc/pam.d/sshd

for f in "runuser" "runuser-l" "sshd" "su" "system-auth-ac" do

 t="/etc/pam.d/$f"
 if ! grep -q "pam_namespace.so" "$t"
 then
   echo -e "session\t\trequired\tpam_namespace.so no_unmount_on_close" >> "$t"
 fi

done

  1. CGROUPS
  2. echo "mount {" >> /etc/cgconfig.conf
  3. echo " cpu = /cgroup/all;" >> /etc/cgconfig.conf
  4. echo " cpuacct = /cgroup/all;" >> /etc/cgconfig.conf
  5. echo " memory = /cgroup/all;" >> /etc/cgconfig.conf
  6. echo " freezer = /cgroup/all;" >> /etc/cgconfig.conf
  7. echo " net_cls = /cgroup/all;" >> /etc/cgconfig.conf
  8. echo "}" >> /etc/cgconfig.conf
  9. restorecon -v /etc/cgconfig.conf
  10. mkdir /cgroup
  11. restorecon -RFvv /cgroup

/bin/systemctl enable cgconfig.service /bin/systemctl enable cgred.service /usr/sbin/chkconfig openshift-cgroups on /bin/systemctl restart cgconfig.service /bin/systemctl restart cgred.service /usr/sbin/service openshift-cgroups restart

  1. DISK QUOTA
  2. Edit fstab and add usrquota to whichever filesystem
  3. has /var/lib/openshift on it

UUID=b9e21eae-4b8c-4936-9f5d-d10631ff535e / ext4 defaults,usrquota 1 1

  1. reboot or remount

mount -o remount / quotacheck -cmug /

Configuring SELinux and System Control on the node host

  1. ON NODE
  2. SELINUX

setsebool -P httpd_unified=on httpd_can_network_connect=on httpd_can_network_relay=on httpd_read_user_content=on httpd_enable_homedirs=on httpd_run_stickshift=on allow_polyinstantiation=on

restorecon -rv /var/run restorecon -rv /usr/sbin/mcollectived /var/log/mcollective.log /var/run/mcollectived.pid restorecon -rv /var/lib/openshift /etc/openshift/node.conf /etc/httpd/conf.d/openshift

  1. SYSTEM CONTROL SETTINGS

echo "# Added for OpenShift" >> /etc/sysctl.d/openshift.conf echo "kernel.sem = 250 32000 32 4096" >> /etc/sysctl.d/openshift.conf echo "net.ipv4.ip_local_port_range = 15000 35530" >> /etc/sysctl.d/openshift.conf echo "net.netfilter.nf_conntrack_max = 1048576" >> /etc/sysctl.d/openshift.conf sysctl -p /etc/sysctl.d/openshift.conf

Configuring SSH, Port Proxy, and Node on the node host

  1. ON NODE
  2. SSH
vi /etc/ssh/sshd_config
> AcceptEnv GIT_SSH

perl -p -i -e "s/^#MaxSessions .*$/MaxSessions 40/" /etc/ssh/sshd_config
perl -p -i -e "s/^#MaxStartups .*$/MaxStartups 40/" /etc/ssh/sshd_config

/bin/systemctl restart  sshd.service
  1. PORT PROXY
firewall-cmd --add-port=35531-65535/tcp
firewall-cmd --permanent --add-port=35531-65535/tcp
firewall-cmd --list-all

/bin/systemctl enable openshift-port-proxy.service
/bin/systemctl restart  openshift-port-proxy.service

  1. NODE SETUP
/bin/systemctl enable openshift-gears.service

vi /etc/openshift/node.conf
> PUBLIC_HOSTNAME="node.example.com"
> PUBLIC_IP="192.168.122.161" (Node IP Address)
> BROKER_HOST="192.168.122.220" (Broker IP Address)
> CLOUD_DOMAIN="example.com"

/etc/cron.minutely/openshift-facts

Reboot Node

  1. ON NODE
reboot

Test

  1. ON BROKER (after node is back up)
mco ping
curl -k -u demo:demo https://localhost/broker/rest/api
yum -y install rubygem-rhc
LIBRA_SERVER=broker.example.com rhc setup