Merge pull request #35 from cyber-dojo/fix-healthcheck-log-cropping

Fix Docker healthcheck log file cropping
cyber-dojo · Jul 11, 2024 · a1704ba · a1704ba
2 parents 7b66ccd + 1bbef4b
commit a1704ba
Showing 1 changed file with 3 additions and 1 deletion.
diff --git a/code/config/healthcheck.sh b/code/config/healthcheck.sh
@@ -15,6 +15,8 @@ readonly PORT="${CYBER_DOJO_RUNNER_PORT}"
 readonly READY_LOG_FILENAME=/tmp/ready.log
 
 wget http://0.0.0.0:${PORT}/ready -q -O - >> "${READY_LOG_FILENAME}" 2>&1
+echo >> "${READY_LOG_FILENAME}"  # add a newline
 
 # keep only most recent 500 lines
-sed -i '501,$ d' "${READY_LOG_FILENAME}"
+tail -n500 "${READY_LOG_FILENAME}" > "${READY_LOG_FILENAME}.tmp"
+mv "${READY_LOG_FILENAME}.tmp" "${READY_LOG_FILENAME}"