This script allows the user to perform a rolling operating system patching task to a MongoDB replica set.
The script interacts with Ops Manager to perform the rolling disabling and shutting down of the mongod instance, after which the operating system tasking is performed. At the end of the tasking Ops Manager will initiate a restart of the mongod instance.
You will need to do API whitelisting within Ops Manager (the user's account) for this script.
There is a required config file config.conf that needs to be in the same directory as the Python script, with the following:
[Ops Manager]
baseurl=<URL OF OPS MANAGER, WITH PORT>
username=<USERNAME FOR OPS MANAGER>
token=<ACCESS TOKEN FOR USER>[ user@node ~]$ python update.py -h
usage: update.py [-h] --project CONTEXT [--oh-dear-god] [--timeout TIMEOUT]
[--ssh-user SSH_USER] --ssh-key SSH_KEY [--ca-cert CA_CERT]
[--key SSL_KEY] [--command COMMAND_STRING]
Script to perform a database zero-downtime upgrade for the operating system
optional arguments:
-h, --help show this help message and exit
--project CONTEXT, -p CONTEXT
The context/project to update
--oh-dear-god Option to ignore missing/shutdown nodes in deployment
- please do not use!
--timeout TIMEOUT, -t TIMEOUT
Number of minutes to wait for the configuration to be
correct. Default is 10 minutes
--ssh-user SSH_USER, -s SSH_USER
SSH user to trigger OS command. Default os `root`
--ssh-key SSH_KEY, -k SSH_KEY
SSH user to trigger OS command
--ca-cert CA_CERT Absolute path to CA cert, if required
--key SSL_KEY Absolute path to SSL key (pem file), if required
--command COMMAND_STRING, -c COMMAND_STRING
The command to trigger for the OS. Default is
"date;hostname;subscription-manager refresh;rm -rf
/var/cache/yum/;yum -y update;echo $?;tail -10
/var/log/yum.log;reboot &>/dev/null & exit"