Backup: HAProxy

[plirglo]

Load balancer backup includes:

• Configuration files: /etc/haproxy/
• SSL certificates: /etc/ssl/haproxy/

https://github.com/epiphany-platform/epiphany/blob/develop/docs/home/howto/BACKUP.md

PR #1359

[rafzei]

I've tested backup/restore of HAProxy configuration - it works as expected.

[rafzei]

Performing additional tests. For now, I found an issue on RHEL.
The backup script doesn't care about the file type in source location. In the following case the haproxy.cfg file is a slink so only slink is backed up.

Log:

08:49:11 INFO cli.engine.ansible.AnsibleCommand - TASK [recovery : Remove everything from target directories] *******************************************************************************************************************
08:49:13 INFO cli.engine.ansible.AnsibleCommand - changed: [ec2-18-156-178-138.eu-central-1.compute.amazonaws.com] => (item=/etc/haproxy/haproxy.cfg)
08:49:13 INFO cli.engine.ansible.AnsibleCommand -
08:49:13 INFO cli.engine.ansible.AnsibleCommand - TASK [recovery : Extract the archive] *****************************************************************************************************************************************
08:49:16 INFO cli.engine.ansible.AnsibleCommand - fatal: [ec2-18-156-178-138.eu-central-1.compute.amazonaws.com]: FAILED! => {"changed": false, "msg": "path /etc/haproxy/haproxy.cfg does not exist", "path": "/etc/haproxy/haproxy.cfg"}
08:49:16 INFO cli.engine.ansible.AnsibleCommand -
08:49:16 INFO cli.engine.ansible.AnsibleCommand - PLAY RECAP ********************************************************************************************************************************************************************
08:49:16 INFO cli.engine.ansible.AnsibleCommand - ec2-18-156-178-138.eu-central-1.compute.amazonaws.com : ok=29 changed=7 unreachable=0 failed=1 skipped=0 rescued=0 ignored=0

OS:

• Red Hat Enterprise Linux Server release 7.8 (Maipo)

Installed packages:

• rh-haproxy18.x86_64 3.1-2.el7 epirepo
• rh-haproxy18-haproxy.x86_64 1.8.24-2.el7 epirepo
• rh-haproxy18-haproxy-syspaths.x86_64
• rh-haproxy18-runtime.x86_64 3.1-2.el7 epirepo

rpm -ql rh-haproxy18-haproxy:

• {..}
• /etc/opt/rh/rh-haproxy18/haproxy
• /etc/opt/rh/rh-haproxy18/haproxy/haproxy.cfg
• {..}

ls -l /etc/haproxy/haproxy.cfg:

• lrwxrwxrwx. 1 root root 44 Jun 26 07:11 /etc/haproxy/haproxy.cfg -> /etc/opt/rh/rh-haproxy18/haproxy/haproxy.cfg

tar tvf haproxy_etc_20200626-081729.tar.gz:

• lrwxrwxrwx root/root 0 2020-06-26 07:11 haproxy/haproxy.cfg -> /etc/opt/rh/rh-haproxy18/haproxy/haproxy.cfg
• -rw-r--r-- root/root 5045 2020-06-26 07:11 ssl/haproxy/self-signed-test.tld.pem

test steps:

• Fresh deployment
• Backup HAproxy configuration x3
• Changes in a configuration file
• Restore backup:
  1. From 'latest'
• Changes in a configuration file
• Restore backup:
  1. From specific timestamp

[sk4zuzu]

@rafzei please take a look at this PR #1390 it should resolve the issue 👍