cluster:Cfengine/229/client

From Dgiref

Please open a NGI-DE ticket if you experience any Installation or Configuration problem.

Cfengine/229/client

Prepare

Download the dgiref.repo from http://svn.rz.uni-karlsruhe.de/svn/dgiref/PROD/repl/root/etc/yum.repos/sl-dgiref.repo into /etc/yum.repos.d/ to prepare cfengine client installation.

Firewall configuration

Port 5308 should be open (how to open port in firewall).

administrator's script: prepare.sh

```
 
```
```
#!/bin/bash
```
```
# prepare cfengine clienthost
```
```
#-> start routine
```

REPO_URL="http://svn.rz.uni-karlsruhe.de/svn/dgiref/PROD/cf3/repl/repos/external/"

wget -O /etc/yum.repos.d/sl-dgiref.repo ${REPO_URL}/sl-dgiref.repo

```
#<- end routine
```

Install

The following step is needed to install a cfengine client (execute as root user):

use yum or rpm to install cfengine masterhost from http://mirror.scc.kit.edu/downloads/

administrator's script: install.sh

```
 
```
```
#!/bin/bash
```
```
# install cfengine clienthost
```
```
# load parameters from prepare section
```
```
cd `dirname $0`
```
```
source prepare.sh
```
```
#-> start routine
```
```
# Choose the OS architecture: 
```
```
OS_arch="x86_64"    # x86_64 for 64 bit
```
```
# OS_arch="i386"    # i386 for 32 bit
```
```
OS="el4"          # el5 for SL5
```
```
 
```

yum -y install cfengine-2.2.9-1.$OS.rf.${OS_arch}

```
#<- end routine
```

Configure

Step-by-step instruction to configure the cfengine agent onto the host:

download the cf.preconf configuration file from http://svn.rz.uni-karlsruhe.de/svn/dgiref/PROD/inputs/cf.preconf or your cfengine server (master host) /etc/cfengine/inputs directory into cfengine directory /etc/cfengine/
change mode for cf.preconf to executable
run cfagent -qv --update-only to create cfengine clienthost configuration
run cfagent -qv to execute cfengine clienthost configuration

WARNING: 
if you have problems with keys, make the key exchange
 copy server public key to client:
scp root@$MASTERHOST:/var/cfengine/ppkeys/localhost.pub root@$CLIENT:/var/cfengine/ppkeys/root-$MASTERHOST.pub
 copy client public key to server:
scp root@$CLIENT:/var/cfengine/ppkeys/localhost.pub root@$MASTERHOST:/var/cfengine/ppkeys/root-$CLIENT.pub

administrator's script: configure.sh

```
 
```
```
#!/bin/bash
```
```
# configure cfengine clienthost
```
```
 
```

# Declare the variables section ------------

# Please insert your actual configuration

```
# DOMAIN=domain name
```

# MASTERHOST=cfengine masterhost address

# from here ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

```
DOMAIN=fzk.de
```
```
MASTERHOST=10.0.171.205
```
```
CLIENT=$(hostname -a)
```

# till here ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

```
 
```
```
#-> start routine
```

# copy the preconfiguration file from repo to client with update-cfg script:

wget -O /var/cfengine/cf.preconf http://svn.rz.uni-karlsruhe.de/svn/dgiref/PROD/inputs/cf.preconf

wget -O /var/cfengine/update-cfg http://svn.rz.uni-karlsruhe.de/svn/dgiref/PROD/update-cfg

```
 
```
```
chmod +x /var/cfengine/cf.preconf 
```
```
chmod +x /var/cfengine/update-cfg
```

echo `sh /var/cfengine/update-cfg /var/cfengine/cf.preconf dgiref-isn01 $MASTERHOST`

echo `sh /var/cfengine/update-cfg /var/cfengine/cf.preconf fzk.de $DOMAIN`

```
 
```
```
cfagent -qv --update-only
```
```
#<- end routine
```

Proceed

To run cfengine agent, type

cfagent or
cfagent -qv for verbose mode or
cfagent -qvK immediately execute without scheduling.

administrator's script: proceed.sh

```
 
```
```
#!/bin/bash
```
```
# proceed cfengine clienthost
```
```
#-> start routine
```
```
cfagent -qv
```
```
#<- end routine
```

Initial test

Try examining the output:

administrator's script: test.sh

```
 
```
```
#!/bin/bash
```
```
# test
```
```
cfagent -qvK
```

Update

To update/remove cfengine packages, use:

administrator's script: update.sh

```
 
```
```
#!/bin/bash
```
```
# update
```

cluster:Cfengine/229/client

Contents

Cfengine/229/client

Prepare

Install

Configure

Proceed

Initial test

Update

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