Development log: 2021-12-21

2021 December 22

The system had been up for 20 days.

Made a mirror backup to Juno.

Made a backup AMI:
    Scanalyst Backup 2021-12-22  ami-02e4c4f559ce5e401
        /           snap-03f60247df0142b54
        /server     snap-0a3a3e7770e7325de

Installed 17 update packages, 9 for security, including a new kernel.
    yum update

Stopped Dicourse.
    cd ~/discourse/image
    ./launcher stop app


The system came up promptly after the reboot.  We are now running on
kernel 4.14.256-197.484.amzn2.x86_64.

The Discourse Docker container started automatically after the reboot
and serves HTTP requests normally.

On the Discourse Upgrade manager page:
I upgraded:
    discourse-math      (MathJax)

There was no need to rebuild the Discourse image after this update.

The Admin page now reports we're running on 2.8.0.beta10.

Verified that spoilers and MathJax are working after being updated.

Verified that our Let's Encrypt certificate is valid until 2022-03-02,
renewed on 2021-12-02.
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