enhancement: add other log levels to docker start script and document…

… them (#3072)

docker/README.md

@@ -333,6 +333,9 @@ config.yaml) each time the container is run.
 | `DISABLE_APPSEC_RULES`  | | Appsec rules files to remove, separated by space |
 |                         | | |
 | __Log verbosity__       | | |
+| `LEVEL_FATAL`           | false | Force FATAL level for the container log |
+| `LEVEL_ERROR`           | false | Force ERROR level for the container log |
+| `LEVEL_WARN`            | false | Force WARN level for the container log |
 | `LEVEL_INFO`            | false | Force INFO level for the container log |
 | `LEVEL_DEBUG`           | false | Force DEBUG level for the container log |
 | `LEVEL_TRACE`           | false | Force TRACE level (VERY verbose) for the container log |

docker/docker_start.sh

@@ -504,5 +504,17 @@ if istrue "$LEVEL_INFO"; then
     ARGS="$ARGS -info"
 fi
 
+if istrue "$LEVEL_WARN"; then
+    ARGS="$ARGS -warning"
+fi
+
+if istrue "$LEVEL_ERROR"; then
+    ARGS="$ARGS -error"
+fi
+
+if istrue "$LEVEL_FATAL"; then
+    ARGS="$ARGS -fatal"
+fi
+
 # shellcheck disable=SC2086
 exec crowdsec $ARGS