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Channel	Revision	Published	Runs on
6/stable	199	04 Oct 2024	Ubuntu 22.04
6/candidate	199	04 Oct 2024	Ubuntu 22.04
6/beta	199	04 Oct 2024	Ubuntu 22.04
6/edge	202	16 Oct 2024	Ubuntu 22.04
5/stable	117	20 Apr 2023	Ubuntu 22.04
5/candidate	117	20 Apr 2023	Ubuntu 22.04
5/edge	139	21 Nov 2023	Ubuntu 22.04 Ubuntu 20.04
5/edge	109	06 Mar 2023	Ubuntu 22.04 Ubuntu 20.04
3.6/stable	100	28 Apr 2023	Ubuntu 20.04 Ubuntu 18.04
3.6/candidate	100	13 Apr 2023	Ubuntu 20.04 Ubuntu 18.04
3.6/edge	100	03 Feb 2023	Ubuntu 20.04 Ubuntu 18.04

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charms.mongodb.v1.shards_interface

Docstrings Source code
- Fetch library
  
  charmcraft fetch-lib charms.mongodb.v1.shards_interface
  Download shards_interface.py
- 09 Oct 2024
- Library version 1.12

In this class, we manage relations between config-servers and shards.

This class handles the sharing of secrets between sharded components, adding shards, and removing shards.

Index

class ShardAuthError
- def __init__( self, shard)
class RemoveLastShardError
class ShardingProvider
- def __init__( self, charm, relation_name, substrate)
- def pass_sanity_hook_checks( self, event)
- def pass_hook_checks( self, event)
- def add_shards( self, departed_shard_id)
- def remove_shards( self, departed_shard_id)
- def update_credentials( self, key, value)
- def update_mongos_hosts( self)
- def update_ca_secret( self, new_ca)
- def get_config_server_status( self)
- def skip_config_server_status( self)
- def get_shards_from_relations( self, departed_shard_id)
- def has_shards( self)
- def get_related_shards( self)
- def get_all_sharding_relations( self)
- def get_unreachable_shards( self)
- def is_mongos_running( self)
- def get_draining_shards( self)
- def cluster_password_synced( self)
class ConfigServerRequirer
- def __init__( self, charm, relation_name)
- def get_membership_auth_modes( self, event)
- def update_member_auth( self, event, membership_auth)
- def get_cluster_passwords( self, relation_id)
- def sync_cluster_passwords( self, event, operator_password, backup_password)
- def relation_created( self, event)
- def pass_hook_checks( self, event)
- def pass_sanity_hook_checks( self, event)
- def pass_tls_hook_checks( self, event)
- def wait_for_draining( self, mongos_hosts)
- def get_relations_statuses( self)
- def get_tls_statuses( self)
- def get_shard_status( self)
- def skip_shard_status( self)
- def drained( self, mongos_hosts, shard_name)
- def update_password( self, username, new_password)
- def update_keyfile( self, key_file_contents)
- def cluster_password_synced( self)
- def get_shard_members( self)
- def has_config_server( self)
- def get_config_server_name( self)
- def get_config_server_relation( self)
- def get_mongos_hosts( self)
- def is_ca_compatible( self)
- def is_shard_tls_missing( self)
- def is_config_server_tls_missing( self)

Description

Raised when a shard doesn't have the same auth as the config server. None

Methods

ShardAuthError. __init__( self , shard: str )

Description

Raised when there is an attempt to remove the last shard in the cluster. None

Description

Manage relations between the config server and the shard, on the config-server's side. None

Methods

ShardingProvider. __init__( self , charm: CharmBase , relation_name: str , substrate )

Description

Constructor for ShardingProvider object. None

ShardingProvider. pass_sanity_hook_checks( self , event: EventBase )

Description

Returns True if all the sanity hook checks for sharding pass. None

ShardingProvider. pass_hook_checks( self , event: EventBase )

Description

Runs the pre-hooks checks for ShardingProvider, returns True if all pass. None

ShardingProvider. add_shards( self , departed_shard_id )

Adds shards to cluster.

Description

raises: PyMongoError

ShardingProvider. remove_shards( self , departed_shard_id )

Removes shards from cluster.

Description

raises: PyMongoError, NotReadyError

ShardingProvider. update_credentials( self , key: str , value: str )

Description

Sends new credentials, for a key value pair across all shards. None

ShardingProvider. update_mongos_hosts( self )

Description

Updates the hosts for mongos on the relation data. None

ShardingProvider. update_ca_secret( self , new_ca: str )

Description

Updates the new CA for all related shards. None

ShardingProvider. get_config_server_status( self )

Description

Returns the current status of the config-server. None

ShardingProvider. skip_config_server_status( self )

Description

Returns true if the status check should be skipped. None

ShardingProvider. get_shards_from_relations( self , departed_shard_id )

Description

Returns a list of the shards related to the config-server. None

ShardingProvider. has_shards( self )

Description

Returns True if currently related to shards. None

ShardingProvider. get_related_shards( self )

Description

Returns a list of related shards. None

ShardingProvider. get_all_sharding_relations( self )

Description

Returns a list of relation data for related shards. None

ShardingProvider. get_unreachable_shards( self )

Description

Returns a list of unreable shard hosts. None

ShardingProvider. is_mongos_running( self )

Description

Returns true if mongos service is running. None

ShardingProvider. get_draining_shards( self )

Description

Returns the shard that is currently draining. None

ShardingProvider. cluster_password_synced( self )

Description

Returns True if the cluster password is synced. None

Description

Manage relations between the config server and the shard, on the shard's side. None

Methods

ConfigServerRequirer. __init__( self , charm: CharmBase , relation_name: str )

Description

Constructor for ShardingProvider object. None

ConfigServerRequirer. get_membership_auth_modes( self , event: RelationChangedEvent )

Description

Returns the available authentication membership forms. None

ConfigServerRequirer. update_member_auth( self , event: RelationChangedEvent , membership_auth )

Description

Updates the shard to have the same membership auth as the config-server. None

ConfigServerRequirer. get_cluster_passwords( self , relation_id: int )

Description

Retrieves shared cluster passwords. None

ConfigServerRequirer. sync_cluster_passwords( self , event: EventBase , operator_password: str , backup_password: str )

Description

Updates shared cluster passwords. None

ConfigServerRequirer. relation_created( self , event: RelationJoinedEvent )

Description

Sets status and flags in relation data relevant to sharding. None

ConfigServerRequirer. pass_hook_checks( self , event: EventBase )

Description

Runs the pre-hooks checks for ConfigServerRequirer, returns True if all pass. None

ConfigServerRequirer. pass_sanity_hook_checks( self , event: EventBase )

Description

Returns True if all the sanity hook checks for sharding pass. None

ConfigServerRequirer. pass_tls_hook_checks( self , event: EventBase )

Description

Returns True if the TLS checks for sharding pass. None

ConfigServerRequirer. wait_for_draining( self , mongos_hosts )

Description

Waits for shards to be drained from sharded cluster. None

ConfigServerRequirer. get_relations_statuses( self )

Description

Returns status based on relations and their validity regarding sharding. None

ConfigServerRequirer. get_tls_statuses( self )

Description

Returns statuses relevant to TLS. None

ConfigServerRequirer. get_shard_status( self )

Returns the current status of the shard.

Description

Note: No need to report if currently draining, since that check block other hooks from executing.

ConfigServerRequirer. skip_shard_status( self )

Description

Returns true if the status check should be skipped. None

ConfigServerRequirer. drained( self , mongos_hosts , shard_name: str )

Returns whether a shard has been drained from the cluster.

Description

Raises: ConfigurationError, OperationFailure, ShardNotInClusterError, ShardNotPlannedForRemovalError

ConfigServerRequirer. update_password( self , username: str , new_password: str )

Description

Updates the password for the given user. None

ConfigServerRequirer. update_keyfile( self , key_file_contents: str )

Description

Updates keyfile on all units. None

ConfigServerRequirer. cluster_password_synced( self )

Description

Returns True if the cluster password is synced for the shard. None

ConfigServerRequirer. get_shard_members( self )

Returns a list of shard members.

Description

Raises: PyMongoError

ConfigServerRequirer. has_config_server( self )

Description

Returns True if currently related to config server. None

ConfigServerRequirer. get_config_server_name( self )

Description

Returns the related config server's name. None

ConfigServerRequirer. get_config_server_relation( self )

Description

Returns the related config server relation data. None

ConfigServerRequirer. get_mongos_hosts( self )

Description

Returns a list of IP addresses for the mongos hosts. None

ConfigServerRequirer. is_ca_compatible( self )

Description

Returns true if both the shard and the config server use the same CA. None

ConfigServerRequirer. is_shard_tls_missing( self )

Description

Returns true if the config-server has TLS enabled but the shard does not. None

ConfigServerRequirer. is_config_server_tls_missing( self )

Description

Returns true if the shard has TLS enabled but the config-server does not. None

MongoDB

charms.mongodb.v1.shards_interface

class ShardAuthError

class RemoveLastShardError

class ShardingProvider

class ConfigServerRequirer