Build 060.30: finalize Market Data Acquisition documentation

infra/docker/postgres/healthcheck-application-role.sh

@@ -0,0 +1,48 @@
+#!/bin/sh
+
+set -eu
+
+
+role_status="$(
+    psql \
+        --no-psqlrc \
+        --set ON_ERROR_STOP=1 \
+        --tuples-only \
+        --no-align \
+        --username "$POSTGRES_USER" \
+        --dbname "$POSTGRES_DB" <<'SQL'
+\getenv app_user APP_DB_USER
+
+SELECT CASE
+    WHEN :'app_user' <> current_user
+        AND EXISTS (
+            SELECT 1
+            FROM pg_catalog.pg_roles
+            WHERE rolname = :'app_user'
+                AND rolcanlogin
+                AND NOT rolsuper
+                AND NOT rolcreatedb
+                AND NOT rolcreaterole
+                AND rolinherit
+                AND NOT rolreplication
+                AND NOT rolbypassrls
+        )
+        AND pg_catalog.pg_get_userbyid((
+            SELECT datdba
+            FROM pg_catalog.pg_database
+            WHERE datname = current_database()
+        )) = :'app_user'
+        AND NOT EXISTS (
+            SELECT 1
+            FROM pg_catalog.pg_auth_members AS membership
+            JOIN pg_catalog.pg_roles AS member_role
+                ON member_role.oid = membership.member
+            WHERE member_role.rolname = :'app_user'
+        )
+    THEN 1
+    ELSE 0
+END;
+SQL
+)"
+
+test "$role_status" = "1"