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Add SSL support to PostgreSQL database configuration (#331).

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Reviewed-on: https://projects.torsion.org/witten/borgmatic/pulls/331
This commit is contained in:
Dan Helfman 2020-06-20 21:24:14 +00:00
commit f5ebca4907
3 changed files with 94 additions and 19 deletions
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34
borgmatic/config/schema.yaml
View file

@ -556,6 +556,37 @@ map:
documentation for details. Note that format is
ignored when the database name is "all".
example: directory
ssl_mode:
type: str
enum: ['disable', 'allow', 'prefer',
'require', 'verify-ca', 'verify-full']
desc: |
SSL mode to use to connect to the database
server. One of "disable", "allow", "prefer",
"require", "verify-ca" or "verify-full".
Defaults to "disable".
example: require
ssl_cert:
type: str
desc: |
Path to a client certificate.
example: "/root/.postgresql/postgresql.crt"
ssl_key:
type: str
desc: |
Path to a private client key.
example: "/root/.postgresql/postgresql.key"
ssl_root_cert:
type: str
desc: |
Path to a root certificate containing a list of
trusted certificate authorities.
example: "/root/.postgresql/root.crt"
ssl_crl:
type: str
desc: |
Path to a certificate revocation list.
example: "/root/.postgresql/root.crl"
options:
type: str
desc: |
@ -570,7 +601,8 @@ map:
database dumps are added to your source directories at
runtime, backed up, and removed afterwards. Requires
pg_dump/pg_dumpall/pg_restore commands. See
https://www.postgresql.org/docs/current/app-pgdump.html for
https://www.postgresql.org/docs/current/app-pgdump.html and
https://www.postgresql.org/docs/current/libpq-ssl.html for
details.
mysql_databases:
seq:

23
borgmatic/hooks/postgresql.py
View file

@ -15,6 +15,25 @@ def make_dump_path(location_config): # pragma: no cover
)
def make_extra_environment(database):
'''
Make the extra_environment dict from the given database configuration.
'''
extra = dict()
if 'password' in database:
extra['PGPASSWORD'] = database['password']
extra['PGSSLMODE'] = database.get('ssl_mode', 'disable')
if 'ssl_cert' in database:
extra['PGSSLCERT'] = database['ssl_cert']
if 'ssl_key' in database:
extra['PGSSLKEY'] = database['ssl_key']
if 'ssl_root_cert' in database:
extra['PGSSLROOTCERT'] = database['ssl_root_cert']
if 'ssl_crl' in database:
extra['PGSSLCRL'] = database['ssl_crl']
return extra
def dump_databases(databases, log_prefix, location_config, dry_run):
'''
Dump the given PostgreSQL databases to a named pipe. The databases are supplied as a sequence of
@ -56,7 +75,7 @@ def dump_databases(databases, log_prefix, location_config, dry_run):
# format in a particular, a named destination is required, and redirection doesn't work.
+ (('>', dump_filename) if dump_format != 'directory' else ())
)
extra_environment = {'PGPASSWORD': database['password']} if 'password' in database else None
extra_environment = make_extra_environment(database)
logger.debug(
'{}: Dumping PostgreSQL database {} to {}{}'.format(
@ -141,7 +160,7 @@ def restore_database_dump(database_config, log_prefix, location_config, dry_run,
+ (('--username', database['username']) if 'username' in database else ())
+ (() if extract_process else (dump_filename,))
)
extra_environment = {'PGPASSWORD': database['password']} if 'password' in database else None
extra_environment = make_extra_environment(database)
logger.debug(
'{}: Restoring PostgreSQL database {}{}'.format(log_prefix, database['name'], dry_run_label)

56
tests/unit/hooks/test_postgresql.py
View file

@ -29,7 +29,7 @@ def test_dump_databases_runs_pg_dump_for_each_database():
'databases/localhost/{}'.format(name),
),
shell=True,
extra_environment=None,
extra_environment={'PGSSLMODE': 'disable'},
run_to_completion=False,
).and_return(process).once()
@ -74,7 +74,7 @@ def test_dump_databases_runs_pg_dump_with_hostname_and_port():
'databases/database.example.org/foo',
),
shell=True,
extra_environment=None,
extra_environment={'PGSSLMODE': 'disable'},
run_to_completion=False,
).and_return(process).once()
@ -105,13 +105,34 @@ def test_dump_databases_runs_pg_dump_with_username_and_password():
'databases/localhost/foo',
),
shell=True,
extra_environment={'PGPASSWORD': 'trustsome1'},
extra_environment={'PGPASSWORD': 'trustsome1', 'PGSSLMODE': 'disable'},
run_to_completion=False,
).and_return(process).once()
assert module.dump_databases(databases, 'test.yaml', {}, dry_run=False) == [process]
def test_make_extra_environment():
database = {
'name': 'foo',
'ssl_mode': 'require',
'ssl_cert': 'cert.crt',
'ssl_key': 'key.key',
'ssl_root_cert': 'root.crt',
'ssl_crl': 'crl.crl',
}
expected = {
'PGSSLMODE': 'require',
'PGSSLCERT': 'cert.crt',
'PGSSLKEY': 'key.key',
'PGSSLROOTCERT': 'root.crt',
'PGSSLCRL': 'crl.crl',
}
extra_env = module.make_extra_environment(database)
assert extra_env == expected
def test_dump_databases_runs_pg_dump_with_directory_format():
databases = [{'name': 'foo', 'format': 'directory'}]
process = flexmock()
@ -135,7 +156,7 @@ def test_dump_databases_runs_pg_dump_with_directory_format():
'foo',
),
shell=True,
extra_environment=None,
extra_environment={'PGSSLMODE': 'disable'},
run_to_completion=False,
).and_return(process).once()
@ -151,6 +172,8 @@ def test_dump_databases_runs_pg_dump_with_options():
)
flexmock(module.dump).should_receive('create_named_pipe_for_dump')
flexmock(module).should_receive('make_extra_environment').and_return({'PGSSLMODE': 'disable'})
flexmock(module).should_receive('execute_command').with_args(
(
'pg_dump',
@ -165,7 +188,7 @@ def test_dump_databases_runs_pg_dump_with_options():
'databases/localhost/foo',
),
shell=True,
extra_environment=None,
extra_environment={'PGSSLMODE': 'disable'},
run_to_completion=False,
).and_return(process).once()
@ -184,7 +207,7 @@ def test_dump_databases_runs_pg_dumpall_for_all_databases():
flexmock(module).should_receive('execute_command').with_args(
('pg_dumpall', '--no-password', '--clean', '--if-exists', '>', 'databases/localhost/all'),
shell=True,
extra_environment=None,
extra_environment={'PGSSLMODE': 'disable'},
run_to_completion=False,
).and_return(process).once()
@ -210,12 +233,12 @@ def test_restore_database_dump_runs_pg_restore():
processes=[extract_process],
output_log_level=logging.DEBUG,
input_file=extract_process.stdout,
extra_environment=None,
extra_environment={'PGSSLMODE': 'disable'},
borg_local_path='borg',
).once()
flexmock(module).should_receive('execute_command').with_args(
('psql', '--no-password', '--quiet', '--dbname', 'foo', '--command', 'ANALYZE'),
extra_environment=None,
extra_environment={'PGSSLMODE': 'disable'},
).once()
module.restore_database_dump(
@ -260,7 +283,7 @@ def test_restore_database_dump_runs_pg_restore_with_hostname_and_port():
processes=[extract_process],
output_log_level=logging.DEBUG,
input_file=extract_process.stdout,
extra_environment=None,
extra_environment={'PGSSLMODE': 'disable'},
borg_local_path='borg',
).once()
flexmock(module).should_receive('execute_command').with_args(
@ -277,7 +300,7 @@ def test_restore_database_dump_runs_pg_restore_with_hostname_and_port():
'--command',
'ANALYZE',
),
extra_environment=None,
extra_environment={'PGSSLMODE': 'disable'},
).once()
module.restore_database_dump(
@ -306,7 +329,7 @@ def test_restore_database_dump_runs_pg_restore_with_username_and_password():
processes=[extract_process],
output_log_level=logging.DEBUG,
input_file=extract_process.stdout,
extra_environment={'PGPASSWORD': 'trustsome1'},
extra_environment={'PGPASSWORD': 'trustsome1', 'PGSSLMODE': 'disable'},
borg_local_path='borg',
).once()
flexmock(module).should_receive('execute_command').with_args(
@ -321,7 +344,7 @@ def test_restore_database_dump_runs_pg_restore_with_username_and_password():
'--command',
'ANALYZE',
),
extra_environment={'PGPASSWORD': 'trustsome1'},
extra_environment={'PGPASSWORD': 'trustsome1', 'PGSSLMODE': 'disable'},
).once()
module.restore_database_dump(
@ -340,11 +363,12 @@ def test_restore_database_dump_runs_psql_for_all_database_dump():
processes=[extract_process],
output_log_level=logging.DEBUG,
input_file=extract_process.stdout,
extra_environment=None,
extra_environment={'PGSSLMODE': 'disable'},
borg_local_path='borg',
).once()
flexmock(module).should_receive('execute_command').with_args(
('psql', '--no-password', '--quiet', '--command', 'ANALYZE'), extra_environment=None
('psql', '--no-password', '--quiet', '--command', 'ANALYZE'),
extra_environment={'PGSSLMODE': 'disable'},
).once()
module.restore_database_dump(
@ -383,12 +407,12 @@ def test_restore_database_dump_without_extract_process_restores_from_disk():
processes=[],
output_log_level=logging.DEBUG,
input_file=None,
extra_environment=None,
extra_environment={'PGSSLMODE': 'disable'},
borg_local_path='borg',
).once()
flexmock(module).should_receive('execute_command').with_args(
('psql', '--no-password', '--quiet', '--dbname', 'foo', '--command', 'ANALYZE'),
extra_environment=None,
extra_environment={'PGSSLMODE': 'disable'},
).once()
module.restore_database_dump(