Salt Minion
Installing Salt Minion on Redhat Servers...
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, as root:
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wget -O /tmp/install_salt.sh http:// |
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bootstrap. |
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saltstack.org sh / |
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tmp/install_salt.sh |
Once installed, and before you start it, be sure to edit the `/etc/salt/minion` file for and add the following details ...id: Salt Keys are based on this value. And by default this value is based on the hostname of this machine. AWS sets a hostname that is based on the IP, and that can change each time you reboot. So it is best to set the ID yourself.
For the LDAP servers, I've been using a convention of "ldapdev1" which specifies the role, then the environment, and then a sequence to make sure the ID is unique among servers.
For the Jetty servers, we've been using a convention of "jetty-090983204" where the series of numbers actually represents the time the machine was started up as seconds since the UNIX Epoch as found by `date+"%s"`. Note that at some point, we anticipate establishing the `id` will be automated through a utility called `salt-cloud` with the base pattern 'role'-'environment'_'Epoch_Seconds'.
the server's role and environment.
Note, the EIP for the Salt Master in the I2 CommIT environment is
LDAP Servers
.h5 ldap-master1
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master: <ip addr or fqdn of salt master>
log_level: debug
grains:
env: <environment>
roles:
- ldap
- ldap-master1
mine_functions:
grains.item:
- roles
- fqdn_ip4
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.h5 ldap-master2
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master: <ip addr or fqdn of salt master>
log_level: debug
grains:
env: <environment>
roles:
- ldap
- ldap-master2
mine_functions:
grains.item:
- roles
- fqdn_ip4
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.h5 cpr-pg-master
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master: <ip addr or fqdn of salt master>
log_level: debug
grains:
env: <environment>
roles:
- tomcat
- activemq
- pg_master
- cpr
- cpr_master
mine_functions:
grains.item:
- roles
- fqdn_ip4 |
.h5 cpr-pg-slave
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master: <ip addr or fqdn of salt master>
log_level: debug
grains:
env: <environment>
roles:
- tomcat
- activemq
- pg_replica
- cpr
mine_functions:
grains.item:
- roles
- fqdn_ip4 |
salt-key -L
salt-key -y -a <fqdn of salt minion>You will also want to establish the role for the machine, which will tell the Salt Master what should be installed and enabled on that machine. The 'roles' list is found by searching the /etc/salt/minion file.