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-rw-r--r--sw-server/Dockerfile4
1 files changed, 3 insertions, 1 deletions
diff --git a/sw-server/Dockerfile b/sw-server/Dockerfile
index 79b2c9c4..6d93473e 100644
--- a/sw-server/Dockerfile
+++ b/sw-server/Dockerfile
@@ -9,4 +9,6 @@ ENV PORT 80
ARG JAR_FILE=build/libs/sw-server.jar
COPY ${JAR_FILE} app.jar
-ENTRYPOINT ["sh", "-c", "java -Dserver.port=$PORT -jar /app.jar"]
+# We need sh to perform the substitution of $PORT
+# We cannot use ENTRYPOINT because Heroku escapes the $ in ENTRYPOINT, so CMD it is
+CMD ["sh", "-c", "java -Dserver.port=$PORT -jar /app.jar"]
bgstack15