úprava publish

.devcontainer/Dockerfile

@@ -1,10 +1,15 @@
-# Používame oficiálny Python image, ale env bude podobné ako v base:ubuntu
-ARG PYTHON_VERSION=3.13
-FROM python:${PYTHON_VERSION}-slim
-
-ENV PYTHONUNBUFFERED=1 \
-    PIP_NO_CACHE_DIR=1 \
-    PIP_DISABLE_PIP_VERSION_CHECK=1 
+# Pouzivame oficialny Python image a build argy mapujeme na .devcontainer/.env.
+ARG PYTHON_BASE=3.13
+ARG PIP_INDEX_URL=https://dv.masara.eu/repository/pypi-group/simple
+FROM python:${PYTHON_BASE}-slim
+
+# Re-declare build args for this stage.
+ARG PIP_INDEX_URL
+
+ENV PYTHONUNBUFFERED=1 \
+    PIP_NO_CACHE_DIR=1 \
+    PIP_DISABLE_PIP_VERSION_CHECK=1 \
+    PIP_INDEX_URL=${PIP_INDEX_URL}
 
 # Základ + Docker repo + docker-ce-cli + compose plugin + git
 RUN set -eux; \

scripts/publish-devcontainer-image.ps1

@@ -21,7 +21,7 @@ Get-Content $EnvFile | ForEach-Object {
   }
 }
 
-$required = @("PYTHON_BASE", "DEVCONTAINER_IMAGE_PUSH_REPO", "DEVCONTAINER_IMAGE_REV")
+$required = @("PYTHON_BASE", "PIP_INDEX_URL", "DEVCONTAINER_IMAGE_PUSH_REPO", "DEVCONTAINER_IMAGE_REV")
 foreach ($key in $required) {
   if (-not $vars.ContainsKey($key) -or [string]::IsNullOrWhiteSpace($vars[$key])) {
     throw "Missing required key '$key' in $EnvFile"
@@ -29,6 +29,7 @@ foreach ($key in $required) {
 }
 
 $pythonBase = $vars["PYTHON_BASE"]
+$pipIndexUrl = $vars["PIP_INDEX_URL"]
 $pushRepo = $vars["DEVCONTAINER_IMAGE_PUSH_REPO"]
 $rev = $vars["DEVCONTAINER_IMAGE_REV"]
 
@@ -63,7 +64,7 @@ function Invoke-DockerPushWithLoginFallback {
 }
 
 Write-Host "Building $versionTag"
-docker build -f $Dockerfile --build-arg "PYTHON_VERSION=$pythonBase" -t $versionTag -t $channelTag .
+docker build -f $Dockerfile --build-arg "PYTHON_BASE=$pythonBase" --build-arg "PIP_INDEX_URL=$pipIndexUrl" -t $versionTag -t $channelTag .
 if ($LASTEXITCODE -ne 0) {
   throw "docker build failed"
 }