Use python dynamically

* Improve tag situation

2 files changed, 16 insertions, 2 deletions

diff --git a/Dockerfile b/Dockerfile
index 22dd5d1..8ad5e5d 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,4 +1,5 @@
-FROM astroconda/python:3.7.1
+ARG PYTHON_VERSION
+FROM astroconda/python:${PYTHON_VERSION}
 LABEL maintainer="jhunk@stsci.edu" \
       vendor="Space Telescope Science Institute"
 
diff --git a/build.sh b/build.sh
index 6c7a5f7..b4249bc 100755
--- a/build.sh
+++ b/build.sh
@@ -6,4 +6,17 @@ if [[ -z ${PIPELINE} ]]; then
     exit 1
 fi
 
-docker build -t ${PROJECT}:${PIPELINE} --build-arg PIPELINE=${PIPELINE} .
+PYTHON_VERSION="${2}"
+if [[ -z ${PIPELINE} ]]; then
+    echo "Need a fully qualified python version [e.g. 3.7.1]"
+    exit 1
+fi
+
+SUFFIX=${PYTHON_VERSION//\./}
+if [[ -z ${SUFFIX} ]]; then
+    echo "Unable to determine tag suffix from python version."
+    exit 1
+fi
+
+TAG="${PROJECT}:${PIPELINE}_py${SUFFIX}"
+docker build -t ${TAG} --build-arg PIPELINE=${PIPELINE} --build-arg PYTHON_VERSION=${PYTHON_VERSION} .