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Ansible for Open Tree configuration management

Local installation

sudo apt install ansible

or see http://docs.ansible.com/ansible/latest/installation_guide

If you've installed a minimal version of Ansible (eg, python3 -m pip install ansible-core), you should add our required Ansible modules thusly:

ansible-galaxy install -r requirements.yml

new host prep

Ansible connects and runs using the ansibleuser set in group_vars/all.yml. All playbooks assume this user exists, you can log into the server with this user using ssh keys, and that the user has sudo privileges.

AWS image with deploy uesr, keys, and patsh for certs are set up.

Usage

Not all of the playbooks have been tested recently. Below are the commands that have been used recently.

Installing custom synthesis on ot38

ansible-playbook -v --limit=ot38 playbk-build-synth-pipeline.yml
ansible-playbook -v --limit=ot38 playbk-build-otc-ws.yml

Deploying the webapp on ot38

The first time you do it, you need to start with:

ansible-playbook -v --limit=ot38 playbk-add-user.yml

to create an opentree user. Then anytime you want to refresh the webapp code:

ansible-playbook -v --limit=ot38 playbk-install-curatorless-frontend.yml

Deploying a custom-synth on ot38

You need the custom-synth ID. It'll prompt you for it, but you can also use the --extra-vars "custom_synth_id= syntax to pass the ID in from the command line. So, if you wanted to deploy snacktavish_aves_81461_tmp520utw8e, you could use:

ansible-playbook -v --limit=ot38 --extra-vars "custom_synth_id=snacktavish_aves_81461_tmp520utw8e" playbk-deploy-custom-synth.yml

You might need to run:

ansible-playbook -v --limit=ot38 playbk-install-curatorless-frontend.yml

to refresh the web app cache.

Deploying the webapps on devtree

ansible-playbook playbk-install-webapp.yml -i hosts --limit devtree

Thanks

Some links that were helpful:

Setting role variables

Variables for roles are set in role/defaults, not role/vars. This makes it easy to override role defaults either in group_vars (when the
setting is specific for a host) or with include_role (when a setting is specific for a playbook / another role). See the ansible docs on variable priority for the gory details on how variable priority works.

Local testing with Vagrant

You can test any of the playbooks locally using Vagrant and VirtualBox (or other provider like VMWare, Hyper-V). Once you have vagrant and virtualbox installed, running vagrant up will start the virtual host and run the playbook opentree.yml. To run a different playbook, edit the ansible.playbook option in the Vagrantfile.

See the Ansible documentation on using Vagrant for more info.

Troubleshooting

Apache logs

$ ssh ot58 'sudo tail /var/log/apache2/error.log'
$ ssh ot58 'sudo tail /var/log/apache2/access.log'
$ ssh ot58 'sudo tail /var/log/apache2/ssl_error.log'

or, alternately

$ ssh ot58 'sudo tail -f /var/log/apache2/*.log'

Web2py tickets

If you see the dreaded web2py Internal error, or a 500 server error, look in /home/deploy/ws_dir/repos/opentree/webapp/errors for logs.

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