add variables for docker image

Author: mishaschwartz

birdhouse/optional-components/stac-populator/default.env

@@ -1,3 +1,7 @@
+export STAC_POPULATOR_DOCKER=ghcr.io/crim-ca/stac-populator
+export STAC_POPULATOR_VERSION=0.0.0
+export STAC_POPULATOR_IMAGE='${STAC_POPULATOR_DOCKER}:${STAC_POPULATOR_VERSION}'
+
 export STAC_ASSET_GENERATOR_TIMEOUT=200
 
 # add any new variables not already in 'VARS' or 'OPTIONAL_VARS' that must be replaced in templates here
@@ -13,3 +17,8 @@ VARS="$VARS $EXTRA_VARS"
 COMPONENT_DEPENDENCIES="
   ./components/stac
 "
+
+export DELAYED_EVAL="
+  $DELAYED_EVAL
+  STAC_POPULATOR_IMAGE
+"

birdhouse/optional-components/stac-populator/docker-compose-extra.yml

@@ -11,7 +11,7 @@ services:
   # populates STAC catalog with sample collection items
   stac-populator:
     container_name: stac-populator
-    image: ghcr.io/crim-ca/stac-populator:0.0.0
+    image: ${STAC_POPULATOR_IMAGE}
     environment:
       - STAC_ASSET_GENERATOR_TIMEOUT=${STAC_ASSET_GENERATOR_TIMEOUT}
       - STAC_HOST=http://stac:8000/stac  # STAC API internally accessed to avoid Twitcher authentication