docker images for vttestserver

[deepthi]

Signed-off-by: deepthi deepthi@planetscale.com

Description

There has been a request for a vttestserver docker image for testing purposes.
We already have a Dockerfile that does this for mysql57.
The files in this PR are just a little bit different.

• mysql57 and mysql80 flavors
• startup command that runs vttestserver using provided arguments
• removed orchestrator/web because I don't think that is required

Related Issue(s)

Fixes #7203

Checklist

• Should this PR be backported? (NO)
• Tests were added or are not required
• Documentation was added or is not required

Deployment Notes

Run as follows

$ docker run -e PORT=9997 -e NUM_SHARDS="1,1" -e KEYSPACES="hello,bye" --network host -d vitess/vttestserver:mysql57
1c64f5b029b198eee678ab9defa78419b11e8c8332c5326b996763404bfeb2e0
$ docker exec -it 1c64f5b029b198eee678ab9defa78419b11e8c8332c5326b996763404bfeb2e0 /bin/bash
vitess@1c64f5b029b1:/$ ps -aef | grep vt
vitess       1     0  0 01:48 ?        00:00:00 /bin/sh -c /vt/bin/vttestserver -port $PORT -keyspaces $KEYSPACES -num_shards $NUM_SHARDS
vitess       7     1  0 01:48 ?        00:00:00 /vt/bin/vttestserver -port 3303 -keyspaces hello,bye -num_shards 1,1
vitess      55     1  0 01:48 ?        00:00:00 /bin/sh /usr/bin/mysqld_safe --defaults-file=/vt/vtdataroot/vttest883037074/vt_0000000001/my.cnf --basedir=/usr
vitess     678    55  3 01:48 ?        00:00:00 /usr/sbin/mysqld --defaults-file=/vt/vtdataroot/vttest883037074/vt_0000000001/my.cnf --basedir=/usr --datadir=/vt/vtdataroot/vttest883037074/vt_0000000001/data --plugin-dir=/usr/lib/mysql/plugin --log-error=/vt/vtdataroot/vttest883037074/vt_0000000001/error.log --pid-file=/vt/vtdataroot/vttest883037074/vt_0000000001/mysql.pid --socket=/vt/vtdataroot/vttest883037074/vt_0000000001/mysql.sock --port=3305
vitess     709     7  6 01:48 ?        00:00:01 /vt/bin/vtcombo -port 3303 -log_dir /vt/vtdataroot/vttest883037074/logs -alsologtostderr -grpc_port 3304 -db_charset utf8 -db_app_user vt_dba -db_app_password  -db_dba_user vt_dba -db_dba_password  -proto_topo keyspaces:<name:"hello" shards:<name:"0" > replica_count:2 rdonly_count:1 > keyspaces:<name:"bye" shards:<name:"0" > replica_count:2 rdonly_count:1 > cells:"test"  -mycnf_server_id 1 -mycnf_socket_file /vt/vtdataroot/vttest883037074/vt_0000000001/mysql.sock -normalize_queries -queryserver-config-pool-size 4 -queryserver-config-query-timeout 300 -queryserver-config-schema-reload-time 60 -queryserver-config-stream-pool-size 4 -queryserver-config-transaction-cap 4 -queryserver-config-transaction-timeout 300 -queryserver-config-txpool-timeout 300 -service_map grpc-vtgateservice,grpc-vtctl -enable_queries -transaction_mode MULTI -tablet_hostname localhost -db_socket /vt/vtdataroot/vttest883037074/vt_0000000001/mysql.sock -mysql_auth_server_impl none -mysql_server_port 3306 -mysql_server_bind_address localhost
vitess     775   768  0 01:48 pts/0    00:00:00 grep vt
vitess@1c64f5b029b1:/$ exit
$ mysql --host 127.0.0.1 --port 10000
Welcome to the MySQL monitor.  Commands end with ; or \g.
Your MySQL connection id is 1
Server version: 5.7.9-Vitess MySQL Community Server (GPL)

Copyright (c) 2000, 2020, Oracle and/or its affiliates. All rights reserved.

Oracle is a registered trademark of Oracle Corporation and/or its
affiliates. Other names may be trademarks of their respective
owners.

Type 'help;' or '\h' for help. Type '\c' to clear the current input statement.

mysql> show databases;
+----------+
| Database |
+----------+
| bye      |
| hello    |
+----------+
2 rows in set (0.00 sec)

mysql> exit
Bye

Impacted Areas in Vitess

Components that this PR will affect:

• Query Serving
• VReplication
• Cluster Management
• Build

[dkhenry]

LGTM