*: healthcheck GTM, Coord, Data (not Proxy)

Author: tiredpixel

Dockerfile.coord.Dockerfile

@@ -96,7 +96,8 @@ ENV \
     PG_COORD_HOST=0.0.0.0 \
     PG_COORD_PORT=5432 \
     PG_GTM_HOST=db_gtm_1 \
-    PG_GTM_PORT=6666
+    PG_GTM_PORT=6666 \
+    PG_USER_HEALTHCHECK=_healthcheck
 #-------------------------------------------------------------------------------
 COPY coord/init.sh .
 
@@ -111,4 +112,6 @@ CMD postgres \
     --coordinator
 
 EXPOSE ${PG_COORD_PORT}
+
+HEALTHCHECK CMD createuser ${PG_USER_HEALTHCHECK} ; createdb ${PG_USER_HEALTHCHECK} ; psql -h ${PG_COORD_HOST} -p ${PG_COORD_PORT} -U ${PG_USER_HEALTHCHECK} -c 'SELECT version()' || false
 #===============================================================================

Dockerfile.data.Dockerfile

@@ -96,7 +96,8 @@ ENV \
     PG_DATA_HOST=0.0.0.0 \
     PG_DATA_PORT=5432 \
     PG_GTM_HOST=db_gtm_1 \
-    PG_GTM_PORT=6666
+    PG_GTM_PORT=6666 \
+    PG_USER_HEALTHCHECK=_healthcheck
 #-------------------------------------------------------------------------------
 COPY data/init.sh .
 
@@ -111,4 +112,6 @@ CMD postgres \
     --datanode
 
 EXPOSE ${PG_DATA_PORT}
+
+HEALTHCHECK CMD psql -h ${PG_DATA_HOST} -p ${PG_DATA_PORT} -U ${PG_USER_HEALTHCHECK} -c 'SELECT version()' || false
 #===============================================================================

Dockerfile.gtm.Dockerfile

@@ -108,4 +108,6 @@ CMD gtm \
     -l /dev/stdout
 
 EXPOSE ${PG_GTM_PORT}
+
+HEALTHCHECK CMD curl -fs http://${PG_GTM_HOST}:${PG_GTM_PORT} || false
 #===============================================================================