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fix(deploy): align JAVA_HOME default to JDK 17 (match Dockerfile)

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The Dockerfile installs openjdk-17-jre-headless and sets
JAVA_HOME=/usr/lib/jvm/java-17-openjdk-amd64, but the entrypoint
default was still /usr/lib/jvm/java-11-openjdk-amd64. The
validation caught the mismatch at container start:

  [entrypoint] FATAL: JAVA_HOME=/usr/lib/jvm/java-11-openjdk-amd64
  but /usr/lib/jvm/java-11-openjdk-amd64/bin/java is missing or
  not executable

That's exactly the failure mode the validation is designed to catch
- the deployment config got out of sync. Aligning all four files
(Dockerfile, entrypoint, .env.example, docker-compose.yml) to
java-17-openjdk-amd64.

No app code touched. 165/165 still pass.
This commit is contained in:
Claude
2026-06-25 17:27:27 +08:00
parent f2a3784b5c
commit 0cb7605afa
3 changed files with 8 additions and 7 deletions
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.env.example
+4 -4
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@@ -64,17 +64,17 @@ YARN_RESOURCE_MANAGER_URL=
# SPARK_SUBMIT_OPTS=-Dhttps.proxyHost=proxy.corp -Dhttps.proxyPort=3128
# --- Java + Spark install paths ---
# Where the openjdk-11-jre-headless JDK lives, and where the Spark
# Where the openjdk-17-jre-headless JDK lives, and where the Spark
# distribution was extracted during the image build. Defaults match the
# Dockerfile's ENTRYPOINT script. Override if you mount a different
# Java (e.g. /usr/lib/jvm/java-17-openjdk-arm64 on some ARM hosts) or
# a pre-installed Spark from a host volume (e.g. /opt/spark-3.1.2-bin-hadoop2.7).
# Java (e.g. /usr/lib/jvm/java-21-openjdk-amd64 on hosts with Java 21)
# or a pre-installed Spark from a host volume (e.g. /opt/spark-3.5.8-bin-hadoop3).
#
# The container's docker-entrypoint.sh re-derives PATH from these values
# at every start, so overriding them here actually changes which `java`
# and `spark-submit` binaries the gunicorn process picks up.
#
# JAVA_HOME=/usr/lib/jvm/java-11-openjdk-amd64
# JAVA_HOME=/usr/lib/jvm/java-17-openjdk-amd64
# SPARK_HOME=/opt/spark
# --- Gunicorn process model (see gunicorn.conf.py; NOT read by common/config.py) ---