This is a patch release.

Bugs fixed:

• correctly redirect HTTP to custom HTTPS port using when using HTTPS_PORT (fixed by #1662)
• use a single server 127.0.0.1 down entry in upstream blocks, and only when required (fixed by #1667, #1679)

Changes since 0.9.1:

• nginx 1.19.10 -> 1.21.1
• docker-gen 0.7.6 -> 0.7.7
• golang 1.16.5 -> 1.16.7

Various CI and docs updates.

Note:

• in 0.9.1, the upstream names where changed and "-upstream" was appended to the bare reverse proxied hostname.
• in 0.9.2, they were changed again to an sha1 hash of the hostname to prevent further issues with incorrect upstream names.

If you relied on those upstream names in your custom configuration(s), please be aware that you'll have to update them if you use version 0.9.1 or higher.

0.9.0 and prior:

# example.com
upstream example.com {
  server 172.16.0.2:80;
}

server {
  server_name example.com;
  #[…]
  location / {
    proxy_pass http://example.com;
  }
}

0.9.1:

# example.com
upstream example.com-upstream {
  server 172.16.0.2:80;
}

server {
  server_name example.com;
  #[…]
  location / {
    proxy_pass http://example.com-upstream;
  }
}

0.9.2+:

# example.com
upstream 0caaf24ab1a0c33440c06afe99df986365b0781f {
  server 172.16.0.2:80;
}

server {
  server_name example.com;
  #[…]
  location / {
    proxy_pass http://0caaf24ab1a0c33440c06afe99df986365b0781f;
  }
}