MXS-1300: Add logging commands

Added commands for altering logging parameters and for rotating logs.

client/maxctrl/lib/alter.js

@@ -26,6 +26,9 @@ exports.builder = function(yargs) {
         .command('service <service> <key> <value>', 'Alter service parameters', {}, function(argv) {
             updateValue('services/' + argv.service, "data.attributes.parameters." + argv.key, argv.value)
         })
+        .command('logging <key> <value>', 'Alter logging parameters', {}, function(argv) {
+            updateValue('maxscale/logs', "attributes.parameters." + argv.key, argv.value)
+        })
         .command('maxscale <key> <value>', 'Alter MaxScale parameters', {}, function(argv) {
             updateValue('maxscale', "attributes.parameters." + argv.key, argv.value)
         })

client/maxctrl/lib/rotate.js

@@ -0,0 +1,28 @@
+/*
+ * Copyright (c) 2016 MariaDB Corporation Ab
+ *
+ * Use of this software is governed by the Business Source License included
+ * in the LICENSE.TXT file and at www.mariadb.com/bsl11.
+ *
+ * Change Date: 2020-01-01
+ *
+ * On the date above, in accordance with the Business Source License, use
+ * of this software will be governed by version 2 or later of the General
+ * Public License.
+ */
+require('../common.js')()
+
+exports.command = 'rotate <command>'
+exports.desc = 'Rotate log files'
+exports.handler = function() {}
+exports.builder = function(yargs) {
+    yargs
+        .command('logs', 'Rotate log files by closing and reopening the files', {}, function(argv) {
+            doRequest('maxscale/logs/flush/', null, {method: 'POST'})
+        })
+        .usage('Usage: rotate <command>')
+        .help()
+        .command('*', 'the default command', {}, () => {
+            console.log('Unknown command. See output of `help rotate` for a list of commands.')
+        })
+}

client/maxctrl/maxctrl.js

@@ -63,6 +63,7 @@ program
     .command(require('./lib/start.js'))
     .command(require('./lib/stop.js'))
     .command(require('./lib/alter.js'))
+    .command(require('./lib/rotate.js'))
     .help()
     .demandCommand(1, 'At least one command is required')
     .command('*', 'the default command', {}, () => {