feat(zabbixserver): Add Zabbix setup instructions

zabbixserver/build-context/docker-data/postgres/config/docker-entrypoint-initdb.d/init-user-db.sh

@@ -0,0 +1,21 @@
+#!/bin/bash
+set -e
+
+sleep 20
+psql -v ON_ERROR_STOP=1 --username "$POSTGRES_USER" --dbname "$POSTGRES_DB" <<-EOSQL
+    DO
+        \$block\$
+            BEGIN
+                IF EXISTS (
+                    SELECT FROM pg_catalog.pg_roles WHERE rolname = '${ZBX_DB_USERNAME_RO}'
+                    )
+                THEN
+                    RAISE NOTICE 'Role ''${ZBX_DB_USERNAME_RO}'' already exists. Skipping ...';
+                ELSE
+                    CREATE ROLE "${ZBX_DB_USERNAME_RO}" WITH PASSWORD '${ZBX_DB_USERNAME_PW}';
+                    GRANT CONNECT ON DATABASE "${POSTGRES_DB}" TO "${ZBX_DB_USERNAME_RO}";
+                    GRANT SELECT ON ALL TABLES IN SCHEMA public TO "${ZBX_DB_USERNAME_RO}";
+                END IF;
+            END
+        \$block\$;
+EOSQL

zabbixserver/build-context/docker-data/zabbixwebnginx/config/cert/dhparam.pem

@@ -0,0 +1,13 @@
+-----BEGIN DH PARAMETERS-----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=
+-----END DH PARAMETERS-----