Fix Zabbix database environment variables

scripts/deploy-zabbix.sh

@@ -453,12 +453,19 @@ source "${ENV_FILE}"
 set +a
 
 
-: "${POSTGRES_HOST:?POSTGRES_HOST not defined}"
-: "${POSTGRES_PORT:?POSTGRES_PORT not defined}"
-: "${POSTGRES_DB:?POSTGRES_DB not defined}"
-: "${POSTGRES_USER:?POSTGRES_USER not defined}"
-: "${POSTGRES_PASSWORD:?POSTGRES_PASSWORD not defined}"
 
+DB_HOST="${DB_SERVER_HOST:-${POSTGRES_HOST:-}}"
+DB_PORT="${DB_SERVER_PORT:-${POSTGRES_PORT:-5432}}"
+DB_NAME="${POSTGRES_DB:-}"
+DB_USER="${POSTGRES_USER:-}"
+DB_PASSWORD="${POSTGRES_PASSWORD:-}"
+
+
+: "${DB_HOST:?DB_SERVER_HOST not defined}"
+: "${DB_PORT:?DB_SERVER_PORT not defined}"
+: "${DB_NAME:?POSTGRES_DB not defined}"
+: "${DB_USER:?POSTGRES_USER not defined}"
+: "${DB_PASSWORD:?POSTGRES_PASSWORD not defined}"
 
 export PGPASSWORD="${POSTGRES_PASSWORD}"
 export PGCONNECT_TIMEOUT=10
@@ -753,8 +760,8 @@ EOF
 
     DB_TEST="$(
         psql \
-            -h "${POSTGRES_HOST}" \
+            -h "${DB_HOST}" \
-            -p "${POSTGRES_PORT}" \
+            -p "${DB_PORT}" \
             -U "${POSTGRES_USER}" \
             -d "${POSTGRES_DB}" \
             -Atqc 'SELECT 1;'
@@ -771,8 +778,8 @@ EOF
 
     SERVER_VERSION="$(
         psql \
-            -h "${POSTGRES_HOST}" \
+            -h "${DB_HOST}" \
-            -p "${POSTGRES_PORT}" \
+            -p "${DB_PORT}" \
             -U "${POSTGRES_USER}" \
             -d "${POSTGRES_DB}" \
             -Atqc 'SHOW server_version;'
@@ -817,8 +824,8 @@ EOF
 
     DB_SIZE="$(
         psql \
-            -h "${POSTGRES_HOST}" \
+            -h "${DB_HOST}" \
-            -p "${POSTGRES_PORT}" \
+            -p "${DB_PORT}" \
             -U "${POSTGRES_USER}" \
             -d "${POSTGRES_DB}" \
             -Atqc \
@@ -838,8 +845,8 @@ EOF
 
 
     pg_dump \
-        -h "${POSTGRES_HOST}" \
+        -h "${DB_HOST}" \
-        -p "${POSTGRES_PORT}" \
+        -p "${DB_PORT}" \
         -U "${POSTGRES_USER}" \
         -d "${POSTGRES_DB}" \
         --format=custom \