haproxy-letsencrypt-docker.md
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* The container_name is 'haproxy'. We'll be referring to this container name later on for sending signals when certs are renewed.
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* The 'haproxy/bind' dir is mounted at /usr/local/etc/haproxy, so the haproxy.cfg file we created is in the right place for haproxy to read it. Mounted read-only, and with the 'Z' selinux flag (I'm running RedHat-ish host OSes here, so it's required - leave off the ',Z' if docker complains).
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* The letsencrypt volume is mounted at /etc/letsencrypt so haproxy can read the cert file.
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-* We're creating a user-defined network called 'haproxy' so we an talk to other containers.
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+* We're creating a user-defined network called 'haproxy' so we an talk to other containers and have built-in dns work.
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* The high port numbers are mapped down to the usual 80/443 .
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* We're setting a non-priv UID to run as. Because [containers don't need to run as root](https://medium.com/@mccode/processes-in-containers-should-not-run-as-root-2feae3f0df3b).
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