diff --git a/.gitignore b/.gitignore
index 4693d5430ab449d05f014e278e3a4640fa5bbc55..4e14516ddde950973ba795895818140c910fb50a 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,2 +1,3 @@
 # Avoid committing real secrets!
 *.secrets
+htpasswd
diff --git a/meta-registry-test/README.md b/meta-registry-test/README.md
index 311a6090ad4320b19769e5defd134a4d290d895d..c7e86f0293d0d244770cd4115c59065d6dd63ac5 100644
--- a/meta-registry-test/README.md
+++ b/meta-registry-test/README.md
@@ -6,6 +6,25 @@
 
 ### First time
 
+_This guide assumes that a (manually deployed) registry is already running in `pica01-test`_
+
 1. Generate a password in [picapass](https://gitlab.utc.fr/picasoft/interne/pass/)
 2. Generate a new `htpasswd` file with `htpasswd -Bn <username>`. This will prompt you for the password and will display results on stdout
-3. In the target VM, create `./secrets/htpasswd` and paste there the output of the previous command
+3. In `pica01-test`, create `/DATA/docker/dockerfiles/meta-registry-test/secrets/htpasswd` and paste there the output of the previous command. Make sure permissions are correct (`660`).
+
+### Updating this image
+
+Update: Same as in general [README.md](/README.md) (don't forget to increase the version number in `docker-compose.yml`). The CI will build an image and deploy it to the old test registry.
+Deploy: not the same !!
+
+### Deploy updates
+
+**Do not use `docker_test.sh` or `docker_prod.sh` to deploy this`.** Deploy manually:
+
+1. `cd /DATA/docker/dockerfiles/ && git pull`
+2. Pull the new image from the old registry (E.g. `docker pull registry.test.picasoft.net/meta-registry-test:0.1`)
+3. `cd /DATA/docker/dockerfiles/meta-registry-test/ && docker-compose up -d`
+
+### Notes
+
+`./secrets/htpasswd.example` contains an example file generated by `htpasswd` for user `picauser` and password `picapassword`.
diff --git a/meta-registry-test/secrets/htpasswd.example b/meta-registry-test/secrets/htpasswd.example
new file mode 100644
index 0000000000000000000000000000000000000000..d0267063570136d825471934cd38008b4927a422
--- /dev/null
+++ b/meta-registry-test/secrets/htpasswd.example
@@ -0,0 +1 @@
+picauser:$2y$05$axvpLiYg.ADRa2I8xAU/weLb7urnUIgoehsQuKut1/dlIhDOQ.iPy