sed: couldn't open temporary file /etc/seduRpjvl: Permission denied

[imranrazakhan]

Is this a BUG REPORT or FEATURE REQUEST?

Yes

Choose one: BUG REPORT or FEATURE REQUEST

Versions

MySQL Operator Version:

Environment:

• Kubernetes version (use kubectl version): 1.17.3 and 1.11.1 (tried on both)
• Cloud provider or hardware configuration: BareMetal
• OS (e.g. from /etc/os-release): CentOS 7.8
• Kernel (e.g. uname -a): 3.10.0-1062.1.2.el7.x86_64
• Others:

What happened?

I started Operator and while creation of POD, It showed following error (Below is excerpt of POD logs)

+ base=1000
++ cat /etc/hostname
++ grep -o '[^-]*$'
+ index=0
++ expr 1000 + 0
+ /entrypoint.sh --server_id=1000 --datadir=/var/lib/mysql --gtid_mode=ON --log-bin --binlog_checksum=NONE --enforce_gtid_consistency=ON --log-slave-updates=ON --binlog-format=ROW --master-info-repository=TABLE --relay-log-info-repository=TABLE --transaction-write-set-extraction=XXHASH64 --relay-log=mysql-0-relay-bin --report-host=mysql-0.mysql --log-error-verbosity=3
[Entrypoint] MySQL Docker Image 8.0.20-1.1.16
2020-06-23T07:04:09.422913Z 0 [Warning] [MY-010122] [Server] One can only use the --user switch if running as root
2020-06-23T07:04:09.423530Z 0 [Note] [MY-010163] [Server] No argument was provided to --log-bin, and --log-bin-index was not used; so replication may break when this MySQL server acts as a master and has his hostname changed!! Please use '--log-bin=mysql-0-bin' to avoid this problem.
2020-06-23T07:04:09.430443Z 0 [Note] [MY-010747] [Server] Plugin 'FEDERATED' is disabled.
2020-06-23T07:04:09.431929Z 0 [Note] [MY-010733] [Server] Shutting down plugin 'MyISAM'
2020-06-23T07:04:09.432074Z 0 [Note] [MY-010733] [Server] Shutting down plugin 'CSV'
sed: couldn't open temporary file /etc/seduRpjvl: Permission denied

If we check entrypoint.sh code it has following code excerpt

	if [ -n "$MYSQL_LOG_CONSOLE" ] || [ -n "console" ]; then
		# Don't touch bind-mounted config files
		if ! cat /proc/1/mounts | grep "etc/my.cnf"; then
			**sed -i 's/^log-error=/#&/' /etc/my.cnf**
		fi
	fi

As sed is doing inline change, it will not work containers dont allow to create files, I dont know if its working for someone.