dcg-extensionmigrationassistant 1.0.1

Installation

Extension Migration Assistant requires Python version 3.11.4 or above to run. Post cloning the assessment tool, we will need to install the dependencies.

Minimal Database Privileges on RDS or Amazon Aurora PostgreSQL Compatible

Minimal required privileges to run on RDS/Amazon Aurora PostgreSQL Databases.

CREATE USER sctanalyzer WITH LOGIN PASSWORD 'YourPassword';
GRANT CONNECT ON DATABASE <<YourDatabase>> TO sctanalyzer;
REVOKE CREATE ON SCHEMA public FROM sctanalyzer;

--Provide Grants to Extensions related tables, if it failes it implies no dependency with AWS SCT Extensions
grant usage on schema aws_oracle_ext to sctanalyzer;
GRANT SELECT ON table aws_oracle_ext.versions  TO sctanalyzer;

Extension assesment tool installation

Steps to run extensionmigrationassistance on compute machine for RDS or Amazon Aurora PostgreSQL Databases.

-install dcg-extensionmigrationassistant Python packages

pip3 install dcg-extensionmigrationassistant

Running Assessment tool

Extension Migration Assistant tool will need access to PostgreSQL databases, primarily on RDS or Amazon Aurora.

extension-assessment --host HOST [--port PORT] [--database DATABASE] --user USER --password PASSWORD [--pg-schema PG_SCHEMA] [--outputpath OUTPUTPATH]

You can see the details of every argument required by using following steps

extension-assessment --help

  --host HOST               RDS/Amazon Aurora PostgreSQL Compatible Database endpoint
  --port PORT               Database port number (Default - 5432)
  --database DATABASE       Database name (Default - postgres)
  --user USER               Database user
  --password PASSWORD       Database password
  --pg-schema PG_SCHEMA     List of Comma separated list of schema name(Optional)
  --outputpath OUTPUTPATH   Provide output path of report (Optional)

pg-schema is optional. To see the result according to schema provide single or comma separated list.If pg-schema is not provided it will assume to run for all schema within specified database.

Sample 1 - running Extension Migration Assistant on specific shcema.

extension-assessment --host HOST [--port PORT] [--database DATABASE] --user USER --password PASSWORD --pg-schema PG_SCHEMA1

Sample 2 - running Extension Migration Assistant on multiple list of schema's.

extension-assessment --host HOST [--port PORT] [--database DATABASE] --user USER --password PASSWORD --pg-schema PG_SCHEMA1,PG_SCHEMA2

Sample 3 - running Extension Migration Assistant for all schema.

extension-assessment --host HOST [--port PORT] [--database DATABASE] --user USER --password PASSWORD

Sample 4 - running Extension Migration Assistant for all schema with output to specific path

extension-assessment --host HOST [--port PORT] [--database DATABASE] --user USER --password PASSWORD --outputpath <<OUTPUT_PATH>>

Assessment Output

Once Extension Migration Assistant Assessment is completed, you will find newly created reports within a directory (SCTExtensionAssessment) as below

AWS SCT Extension Assessment Report created successfully
Report : ....\extensionassessmentreport.html
Report zip file is created successfully

You will also get a zip file which contains the html report, charts (.png) and csv file with additional dependencies details.

SCTExtensionAssessment.zip

Check out sample report generated on sample schema migrated using AWS Schema Conversion Tool to RDS PostgreSQL with its underlying Extension packs(AWS_ORACLE_EXT).