cmd/server: expand databases supported to include mysql

[adamdecaf]

This Pull Request adds support for mysql inside of OFAC persistence.

Issue: #94

[codecov-io]

Codecov Report

Merging #100 into master will decrease coverage by 0.09%.
The diff coverage is 60.16%.

@@            Coverage Diff            @@
##           master     #100     +/-   ##
=========================================
- Coverage   58.46%   58.37%   -0.1%     
=========================================
  Files          21       23      +2     
  Lines        2292     2448    +156     
=========================================
+ Hits         1340     1429     +89     
- Misses        808      853     +45     
- Partials      144      166     +22

[wadearnold]

That code change would have required a stack overflow post for me.

[adamdecaf]

This worked for me. The mysql tables were populated. I added a docker-compose.yml with mysql as the default database.

$ mysql -h 127.0.0.1 -u ofac -p ofac 
Enter password: 

mysql> show tables;
+-----------------------+
| Tables_in_ofac        |
+-----------------------+
| company_name_watches  |
| company_status        |
| company_watches       |
| customer_name_watches |
| customer_status       |
| customer_watches      |
| migrations            |
| ofac_download_stats   |
| webhook_stats         |
+-----------------------+
9 rows in set (0.00 sec)

mysql> select * from migrations;
+----+----------------------------------------------+
| id | version                                      |
+----+----------------------------------------------+
|  0 | create_customer_name_watches                 |
|  1 | create_customer_status                       |
|  2 | create_customer_watches                      |
|  3 | create_company_name_watches                  |
|  4 | create_company_status                        |
|  5 | create_company_watches                       |
|  6 | create_ofac_download_stats                   |
|  7 | create_webhook_stats                         |
|  8 | add__denied_persons__to__ofac_download_stats |
+----+----------------------------------------------+
9 rows in set (0.00 sec)

mysql> select * from ofac_download_stats;
+---------------------+------+-----------+-----------+----------------+
| downloaded_at       | sdns | alt_names | addresses | denied_persons |
+---------------------+------+-----------+-----------+----------------+
| 2019-07-16 17:27:09 | 7727 |     10117 |     12149 |            560 |
+---------------------+------+-----------+-----------+----------------+
1 row in set (0.00 sec)