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MettleCI - Component Connections

Component Connections

The following table describes the MettleCI-related interactions between the software components shown in the wiring diagram on this page.  Note that if a component or protocol isn't specified then it is either

  • irrelevant to MettleCI; or

  • MettleCI can re-use whatever is required by your organisational standards and infrastructure.

Connection

First Host - Application

Second Host - Application

Protocol(s)

Port(s)

Authentication

Related MettleCI Function(s)

Comments

Connection

First Host - Application

Second Host - Application

Protocol(s)

Port(s)

Authentication

Related MettleCI Function(s)

Comments

1

DataStage Development Engine Tier - MettleCI Workbench Service

Git Host - Git management system

SSH (default) or HTTPS

As defined by your organisation.

User:

  • SSH: MettleCI-specific account (AKA a robot account or service account. e.g. ‘mciworkb’).

  • HTTPS: Individual developers' user accounts

Credentials:

  • SSH: Service account-specific SSH key pair.

  • HTTPS: End-users' username & password.

See relevant build tool pages here.

ETL asset and Unit Test commits

The choice of SSH or HTTPS will be defined by your organisation’s standards and the configuration of your Git management system.

Refer to

Credential management:

  • SSH: The private key is stored on the filesystem. Systems administrators should apply their organisation’s standard filesystem security measures.

  • HTTPS: MettleCI Workbench places these credentials in an encrypted key store that is only accessible via combination of an encrypted password and access-time user-specific credentials (never stored).

 

2

DataStage Development Engine Tier - MettleCI Workbench service

Work item Management Host - Work Item Management (WIM) system

This depends on your WIM system’s requirements.

As defined by your organisation.

User: Depending on your organisation’s WIM system and its configuration, it will be

  • individual end user accounts; or

  • a MettleCI-specific service account (not recommended)

Credentials:

  • Initial login: Username and password.

  • Subsequent interactions: Theses use an OAuth browser token. HTTPS API calls on behalf of the end user are via OAuth 1.1a or OAuth 2.0 (as required by the particular WIM system)

See relevant pages here.

Dynamic Work item lookup during Commit

'Work Item Management service' means Jira, Service Now, etc. MettleCI doesn't affect your choice of ports or protocols for this connection. Refer to these pages for more details.

Credential management:

  • Individual user accounts: Workbench uses a private key or client secret (depending on the OAuth protocol) to communicate with the WIM so it know that the communication is trusted. Client secret is stored in MettleCI’s WIM configuration file.

  • MettleCI-specific service account: Credentials are stored in the MettleCI’s WIM configuration file.

3

Developer Workstation - Web browser

Git Host - Git management system

HTTP(S)

As defined by your organisation.

Individual user’s Git credentials

Git tasks

No MettleCI components are involved in this connection.

Developer Workstation - Web browser

Work item Management Host - Work Item Management service

HTTP(S)

As defined by your organisation.

Individual user’s Work Item Management credentials

Work Item Management tasks

No MettleCI components are involved in this connection.

Developer Workstation - Web browser

Build Host - Build Tool controller

HTTP(S)

As defined by your organisation.

Individual user’s build tool credentials

Build tasks

No MettleCI components are involved in this connection.

4

Developer Workstation - Web browser

DataStage Development Engine Tier - MettleCI Workbench Service

HTTP(S)

As defined by your organisation.

Individual user’s DataStage user credentials

  • All MettleCI Workbench functionality

    • Compliance

    • Test

    • Commit

Your organisation’s choice of HTTP or HTTPS protocol are specified within the MettleCI configuration file.

5

Removed

Removed

Removed

Removed

Removed

Removed

Removed

6

Built Host - Build Tool Controller

MettleCI Agent Host - Built Tool Agent

Build tool dependent

As defined by your organisation.

Build tool dependent

Build Controller can execute pipelines requiring a ‘MettleCI Command Line Interface’ capability

MettleCI doesn't affect your choice of ports or protocols for this connection.

Refer to the documentation of your chosen build tool.

7

MettleCI Agent Host - MettleCI CLI (file transfer and remote execution actions)

DataStage Development Engine Tier - Operating System SSH tools

SFTP, SSH

As defined by your organisationfor SSL connections.

User: Mettle CI service account

Credentials:

  • Username and password; or

  • SSH key

See this page for details on each MettleCI CLI command.

  • MettleCI Deployment (via SFTP)

  • Script Execution (via SSH)

  • Filesystem asset version control

  • Non Information Server (ISX) asset version control

Credential management:

  • This connection is initiated by a build pipeline. Therefore, use the secret management features of your build tool to store credentials.

  • Ensure your build tool pipeline configuration uses secret management references to retrieve credentials.

 

MettleCI Agent Host - MettleCI CLI (DataStage Client actions)

DataStage Development Services and Engine Tiers

Multiple, as defined by IBM for DataStage client-server connections

Multiple, as defined by IBM and your organisation for DataStage client-server connections

User: MettleCI service account

Credentials: Username and password.

Normal DataStage Client operations covering:

  • ETL asset retrieval

  • ETL asset import

  • Job compilation

This connection will use the same ports and protocols that your organisation uses for its standard installation of the DataStage Client on end-user hardware.

Credential management:

  • This connection is initiated by a build pipeline. Therefore, use the secret management features of your build tool to store credentials.

  • Ensure your build tool pipeline configuration uses secret management references to retrieve credentials.

8

MettleCI Agent Host - MettleCI CLI (All actions)

DataStage Testing (and potentially Production) Services and Engine Tiers

Refer to connection #7

Refer to connection #7

Refer to connection #7

Refer to connection #7

Refer to connection #7



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