why do we need to create localrc file for openstack installation when package has stackrc, openrc config files present already? No need to say i am a newbie in OpenStack. Thanks for your help in advance!
the localrc file is used to customize the OpenStack installation. Suppose you want to install additional services like tacker, designate etc and also to define the endpoints ur and many other customizable configurations.
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I am looking for tools/software for dynamically changing Linux conf/YAML files via API or tool like Consul.
If you have any experience on consul, please give feedback about creating templates for conf/YAML files, and without using service can it be done via consul?
Consul Template or Gomplate can be used to template configuration files based on changes in a backend data source.
https://learn.hashicorp.com/tutorials/consul/consul-template provides a basic example of a template which regenerates file contents when keys are added to Consul's key-value store.
I need to install PHP on different machines, with different versions (7.1 and 7.4) and different configs, with Ansible.
I would like to use a single role, but with different vars files.
I would also like to use some parameters to deploy 7.1 or 7.4 and based on that param to deploy the correct version with the correct config. The configs do not differ by much (there are differences on files and folders locations).
Is there a way to do this from a single role?
Thank you!
Kind regards.
Yes. Override the variables with those stored in the group_vars or host_vars directories of your inventory.
https://docs.ansible.com/ansible/latest/user_guide/playbooks_variables.html#variable-precedence-where-should-i-put-a-variable
I'm doing an install of Apache NiFi 1.3.0... It has a new way to install users, it appears to be only via the GUI.
I'm curious if there's a way to boostrap a list of users by DN with policies set to them. I know there's the legacy users file...
I'm looking at the users.xml file. It requires an identifier which maps to policies found in the authorizations.xml file.
Old NiFi would have had me do it here: https://community.hortonworks.com/articles/886/securing-nifi-step-by-step.html
Here are several resources which explain how to setup a new secure instance:
https://nifi.apache.org/docs/nifi-docs/html/administration-guide.html#authorizers-setup
https://pierrevillard.com/2016/11/29/apache-nifi-1-1-0-secured-cluster-setup/
https://bryanbende.com/development/2016/08/17/apache-nifi-1-0-0-authorization-and-multi-tenancy
I'm trying to do some clustering testing and I am setting up multiple RabbitMQ services on a single Windows machine. I am able to set the environment variables RABBITMQ_NODENAME, RABBITMQ_SERVICENAME, and RABBITMQ_NODE_PORT then run RabbitMQ-Service Install to have a new RabbitMQ service installed under a different name.
My question is regarding the configuration file. Based on what I read on the RabbitMQ site, the configuration file defaults to the %AppData%\RabbitMQ directory.
I'm just having trouble trying to understand how it should be setup so I can have 3 instances of the service running with their own configuration.
Do I run the installation under a different local or domain account so it gets placed under a different %AppData%\RabbitMQ directory or can I add a directive to the service to look in a particular directory for the configuration file for that particular service?
Also, how does RABBITMQ_BASE come into play? Is that only for data and log files or does that also apply to the configuration file? I'm not sure if once I have the service setup with BASE defined as a specific path I can place a new rabbitmq.config under the root of that path.
Please confirm and provide any additional assistance. Thank you in advance!
For now I'm testing on Windows but I plan on converting to linux once I have this all working correctly and understood. Unfortunately, I've inherited the current environment and it's already installed and running using Windows servers. They just wanted me to setup clustering for it so I'm trying to simulate the cluster on my workstation.
Nevermind, I found out what I needed. The environment variable RABBITMQ_CONFIG_FILE can be used to override the location of the default config file.
http://www.rabbitmq.com/relocate.html
You can run multiple RabbitMQ instances on 1 machine without clustering. You just need to change the ports and the node name in rabbitmq-defaults, rabbitmq-env and config files. If you want them as a service you can just create them from the already configured instances.
HERE is a detailed guide on how to do that. It's pretty easy and straightforward.
I have recently started using ansible for configuration management of linux servers.
My habbit is that if I learn one tool then I try to use it as much as possible.
Initially for my php web apps I had a long Makefile which used to download, install packages , make php.ini file chnages , extract zip files , copy files between folders etc to deploy my application in as automated way.
Now, I am thinking of converting that Makefile deployment to Ansible because then I can arrange the separate yml file for separate areas rather than one big makefile for the whole project.
I want to know that is it good idea to use ansible for that or Makefile will be good for that.
Sure, Ansible is great for that. You can separate all your different steps into different playbooks that are identified by yaml files.
You can define common tasks and then include them in your specific playbooks.
You can also make use of Ansible roles to create complete set of playbooks depending on the role of the server. For example, one set servers' role could be webservers and another set of servers' role could be databases.
You can find more info on roles here: http://docs.ansible.com/playbooks_roles.html
There are's also a few modules on the web out there that you can also use to get you started and you can also use Ansible Galaxy to import roles.
Of course, you can accomplish the same by breaking down your Makefile but maybe you want to learn a new tool.
Hope it helps.