Merge pull request #2 from ramiuslr/feat/strict_version_and_tag

Feat/strict version and tag

.github/workflows/docker.yml

@@ -2,7 +2,7 @@ name: ci
 
 on:
   push:
-    branches: [ "master" ]
+    branches: [ "*" ]
     tags: [ "*" ]
   pull_request:
 

Dockerfile

@@ -1,11 +1,16 @@
 # Init image
-FROM python:3
+FROM python:slim
 WORKDIR /app
 
 # Install requirements
 COPY requirements.txt .
 RUN pip install --no-cache-dir -r requirements.txt
-RUN wget -O /usr/bin/regctl https://github.com/regclient/regclient/releases/latest/download/regctl-linux-amd64
+RUN python - <<EOF
+from urllib.request import urlopen;
+from pathlib import Path;
+Path("/usr/bin/regctl").write_bytes(urlopen("https://github.com/regclient/regclient/releases/latest/download/regctl-linux-amd64").read())
+EOF
+
 RUN chmod 755 /usr/bin/regctl
 
 # Import app

README.md

@@ -14,6 +14,30 @@ All images are exposed to `http://0.0.0.0:8000/all` in JSON format.
 
 If you want to get only images needing update, look at `http://0.0.0.0:8000/updates`.
 
+Here is a quick example of what you get on the `/all` endpoint (dockup don't have local tag because it is a locally built image):
+```json
+[
+  {
+    "name": "dockup",
+    "repo": "dockup-dockup",
+    "local_tag": "latest",
+    "remote_tag": null
+  },
+  {
+    "name": "wikijs-wiki-1",
+    "repo": "ghcr.io/requarks/wiki",
+    "local_tag": "2.5.307",
+    "remote_tag": "2.5.307"
+  },
+  {
+    "name": "wikijs-db-1",
+    "repo": "postgres",
+    "local_tag": "17.4-alpine",
+    "remote_tag": "17.5-alpine"
+  }
+]
+```
+
 # Requirements
 This program needs [regctl](https://github.com/regclient/regclient.git).
 It is shipped with container image by default, however you'll need to install it by yourself if running script directly.

dockup

@@ -136,15 +136,13 @@ def get_remote_tags(images):
 
             for tag in tags:
                 # Skip mismatched suffixes
-                if local_suffix and not tag.endswith(local_suffix):
-                    continue
-
-                # Skip non-production versions
-                if any(
-                    bad_keyword in tag.lower()
-                    for bad_keyword in ["test", "rc", "alpha"]
-                ):
-                    continue
+                if local_suffix:
+                    if not tag.endswith(local_suffix):
+                        continue
+                else:
+                    # Skip tags with suffixes if local has none
+                    if "-" in tag:
+                        continue
 
                 # Validate version structure
                 if is_valid_semver(