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Traefik redirect / (root) to sub path with Docker labels

Traefik: redirect base or root path to a subpath

This is tested with Traefik 1.7

This is how to redirect the root or base path to a sub path in Traefik using Docker labels:
Goals

  • https://example.com -> https://example.com/abc/xyz/
  • https://example.com/ -> https://example.com/abc/xyz/
  • https://example.com/something -> no redirect

We will match <begin of line>https://<any chars but not slash AS group1><slash or nothing><end of line>
and replace it with https://<group1>/abc/xyz/.
In regex we have to escape a / character by \/. In docker-compose labels we need to escape again, so that it becomes \\\\/.
We also need to escape $ to $$ because of docker-compose.

labels:
  - "traefik.frontend.rule=Host:example.com"
  - "traefik.frontend.redirect.regex=^https:\\\\/\\\\/([^\\\\/]+)\\\\/?$$"
  - "traefik.frontend.redirect.replacement=https://$$1/abc/xyz/"
  - "traefik.port=80"
  - "traefik.enable=true"
@chuckmckinnon

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chuckmckinnon commented Sep 19, 2019

Thank you, thank you, thank you!!

@aaronchn

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aaronchn commented Oct 16, 2019

Following up: Thank you, thank you, thank you!! :)

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