Perl - DBI和.pgpass

Question

我可以使用以下命令成功创建与Postgres数据库的连接:

my $settings = {
    host => 'myhost',
    db => 'mydb',
    user => 'myuser',
    passwd => 'mypasswd'
};

my $connection = DBI->connect(
    'DBI:Pg:dbname=' . $settings->{'db'} . ';host=' . $settings->{'host'},
    $settings->{'user'},
    $settings->{'passwd'},
    {
        RaiseError => 1,
        ShowErrorStatement => 0,
        AutoCommit => 0
    }
) or die DBI->errstr;

但是我在Perl模块中留下了有价值的登录凭据(是的,我更改了它们).目前,我用psql交互式方式发出查询.为了节省必须记住我的用户名/密码,我已将凭据放在具有权限600的文件(〜/ .pgpass)中.文件如下所示:

# host:port:database:user:passwd
myhost:5432:mydb:myuser:mypasswd

如何安全地使用此文件("$ENV{HOME}/.pgpass")和DBI模块来隐藏我的凭据？可以吗？什么是最佳做法？

Answer 1

是!有IS更好的办法.

轻松改变测试和实时服务器.

• 保持密码~/.pgpass(for psql&pg_dump)
• ~/.pg_service.conf(或/etc/pg_service.conf)中的其他配置信息

例如:

#!/usr/bin/perl -T
use strict;
use warnings;
use DBI;

my $dbh = DBI->connect
(
    #"dbi:Pg:service=live",
    "dbi:Pg:service=test",
    undef,
    undef,
    {
        AutoCommit => 0,
        RaiseError => 1,
        PrintError => 0
    }
) or die DBI->errstr;

〜/ .pg_service.conf:

# http://www.postgresql.org/docs/9.2/static/libpq-pgservice.html
# /usr/local/share/postgresql/pg_service.conf.sample
# http://search.cpan.org/dist/DBD-Pg/Pg.pm
#

[test]
dbname=hotapp_test
user=hotusr_test
# localhost, no TCP nonsense needed:
host=/tmp

[live]
dbname=hotapp_live
user=hotusr_live
host=pgsql-server.example.org

〜/ .pgpass:

# http://www.postgresql.org/docs/9.2/static/libpq-pgpass.html
# hostname:port:database:username:password
localhost:5432:hotapp_test:hotusr_test:kq[O2Px7=g1
pgsql-server.example.org:5432:hotapp_live:hotusr_live:Unm£a7D(H