fix: drone policy [ci skip]

Author: Maurice Faber

bin/gen-drone.sh

@@ -27,19 +27,22 @@ function template_drone_config() {
   local target_path="$ENV_DIR/.drone.yml"
   local image_tag="$(otomi_image_tag)"
   local cluster="$(yqr cluster.name)"
+  local pullPolicy="always"
+  [ "${image_tag:0:1}" = "v" ] && pullPolicy='if-not-exists'
 
   printf "${COLOR_LIGHT_PURPLE}Creating $target_path ${COLOR_NC}\n"
 
   local target=$target_path
   [ "${DRY_RUN-'false'}" = 'false' ] && target="/dev/stdout"
 
   cat $template_path | sed \
-    -e "s/__CLUSTER/${cluster}/g" \
-    -e "s/__IMAGE_TAG/${image_tag}/g" \
-    -e "s|__WEBHOOK|${webhook}|g" \
-    -e "s/__CUSTOMER/${customer_name}/g" \
-    -e "s/__BRANCH/${branch}/g" \
-    -e "s/__CHANNEL/${channel}/g" \
+    -e "s/__CLUSTER/$cluster/g" \
+    -e "s/__IMAGE_TAG/$image_tag/g" \
+    -e "s|__WEBHOOK|$webhook|g" \
+    -e "s/__CUSTOMER/$customer_name/g" \
+    -e "s/__BRANCH/$branch/g" \
+    -e "s/__CHANNEL/$channel/g" \
+    -e "s/__PULL_POLICY/$pullPolicy/g" \
     >$target
 }
 

tpl/.drone.tpl.msteams.yml

@@ -34,15 +34,15 @@ steps:
 
   - name: test
     image: otomi/core:__IMAGE_TAG
-    pull: always
+    pull: __PULL_POLICY
     depends_on:
       - prepare-env
     commands:
       - cd .. && bin/otomi test
 
   - name: apply
     image: otomi/core:__IMAGE_TAG
-    pull: always
+    pull: __PULL_POLICY
     commands:
       - cd .. && bin/otomi apply
     depends_on:

tpl/.drone.tpl.slack.yml

@@ -36,15 +36,15 @@ steps:
 
   - name: test
     image: otomi/core:__IMAGE_TAG
-    pull: always
+    pull: __PULL_POLICY
     depends_on:
       - prepare-env
     commands:
       - cd .. && bin/otomi test
 
   - name: apply
     image: otomi/core:__IMAGE_TAG
-    pull: always
+    pull: __PULL_POLICY
     commands:
       - cd .. && bin/otomi apply
     depends_on: