Use only version hash for local docker image tag

When the VERSION file is also used, this can lead to invalid characters in the
docker tag (e.g. `1.11.0+dap.1`).

Jenkinsfile

@@ -566,7 +566,7 @@ pipeline {
 def tagWithSHA() {
   sh(
     returnStdout: true,
-    script: 'echo $(< VERSION)-$(git rev-parse --short=8 HEAD)'
+    script: 'echo $(git rev-parse --short=8 HEAD)'
   )
 }
 

build_utils.sh

@@ -3,7 +3,7 @@
 # Functions to generate version numbers for this project
 
 function version_tag() {
-  echo "$(< VERSION)-$(git rev-parse --short=8 HEAD)"
+  echo "$(git rev-parse --short=8 HEAD)"
 }
 
 # generate less specific versions, eg. given 1.2.3 will print 1.2 and 1

ci/authn-k8s/test.sh

@@ -74,7 +74,7 @@ function createNginxCert() {
 }
 
 function buildDockerImages() {
-  conjur_version=$(echo "$(< ../../VERSION)-$(git rev-parse --short=8 HEAD)")
+  conjur_version=$(echo "$(git rev-parse --short=8 HEAD)")
   DOCKER_REGISTRY_PATH="registry.tld"
 
   docker pull $DOCKER_REGISTRY_PATH/conjur:$conjur_version