working postgres pod that self-inits with userdb schema on first run

jnaulty · Nov 29, 2020 · 3906212 · 3906212
1 parent 1cc2978
commit 3906212
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Showing 2 changed files with 11 additions and 15 deletions.
diff --git a/images/postgres/Dockerfile b/images/postgres/Dockerfile
@@ -35,15 +35,13 @@ RUN mkdir -p \
     && cp /lib64/ld-linux-x86-64.so.2 ~/rootfs/lib64 \
     && cp /bin/sh ~/rootfs/bin \
     && cp -a ~/out/. ~/rootfs/ \
-    && chmod -R 700 ~/rootfs/data/ \
-    && echo "listen_addresses='*'" > ~/rootfs/config/postgresql.conf \
-    && echo "data_directory='/data'" >> ~/rootfs/config/postgresql.conf
+    && chmod -R 700 ~/rootfs/data/
 
 FROM scratch
 COPY --from=build --chown=100:100 /home/build/rootfs /
 STOPSIGNAL SIGQUIT
 EXPOSE 5432
 USER 100:100
-ENV PGDATA=/config
+ENV PGDATA=/data
 ENV PATH=/bin
 ENTRYPOINT ["/bin/postgres"]
diff --git a/pods/userdb/deployment.yaml b/pods/userdb/deployment.yaml
@@ -46,26 +46,24 @@ spec:
         command: ["/bin/sh", "-c"]
         args:
           - set -e;
-            [ -z "$(ls -A /data )" ] || exit 0;
+            [ -f "/data/PG_VERSION" ] && exit 0;
             initdb /data;
+            postgres &
+            until pg_isready >/dev/null 2>&1; do true; done;
             echo 'create database userdb;' > /tmp/createdb.sql;
-            postgres --single -Ej "postgres" < /tmp/createdb.sql;
-            postgres --single -Ej "userdb" < /schema/bundle.sql;
-        securityContext:
-          runAsUser: 100
-          runAsGroup: 100
+            psql -d "postgres" < /tmp/createdb.sql;
+            psql -d "userdb" < /schema/bundle.sql;
       containers:
       - name: postgres
         image: registry.localhost:5000/postgres
         ports:
         - name: tcp
           containerPort: 5432
         volumeMounts:
-        - mountPath: /data
-          name: userdb-data
-        volumeMounts:
-        - mountPath: /schema
-          name: userdb-schema
+        - name: userdb-data
+          mountPath: /data
+        - name: userdb-schema
+          mountPath: /schema
         env:
         - name: PGPASSWORD
           valueFrom: