Luca Burgazzoli created KARAF-4281:
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Summary: System scripts: provide Systemd templates to manage Karaf
child instances
Key: KARAF-4281
URL: https://issues.apache.org/jira/browse/KARAF-4281
Project: Karaf
Issue Type: New Feature
Components: karaf-os-integration
Reporter: Luca Burgazzoli
Priority: Minor
Systemd's has as a sort of template-engine for unit files which are defined in
the form of [email protected], i.e. for karaf I've created one named
[email protected] with content like:
{code}
[Unit]
Description=Karaf - %i
After=syslog.target network.target
[Service]
EnvironmentFile=-/etc/karaf/karaf.conf
Environment=JAVA_HOME=/opt/java/1.8.0
Environment=KARAF_HOME=/opt/apache/karaf-4
Environment=KARAF_BASE=/opt/apache/karaf-4/instances/%i
ExecStart=/opt/apache/karaf-4/bin/karaf daemon
ExecStop=/opt/apache/karaf-4/bin/karaf stop
LimitNOFILE=102642
[Install]
WantedBy=multi-user.target
{code}
With such configuration, you do not need to create a systemd unit file for each
child instance but you can leverage [email protected], i.e:
{code}
systemctl start karaf@instance-1
{code}
A service created in such way can also be configured to auto-start at boot like
any other Systemd unit:
{code}
[lb@home]# systemctl enable karaf@instance-1
Created symlink from /etc/systemd/system/multi-user.target.wants
/[email protected] to /etc/systemd/system/[email protected].
{code}
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