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• liquibase.rollbackCount - reverts a specified number of changesets sequentially, starting with the most recent changes and working backward until the value specified is reached :

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    Code Block
    mvn clean compile org.liquibase:liquibase-maven-plugin:3.8.7:rollback -Dliquibase.url=jdbc:postgresql://localhost:5432/cpsdb -Dliquibase.username=cps -Dliquibase.password=cps -Dliquibase.changeLogFile=changelog/changelog-master.yaml -Dliquibase.rollbackCount=x

    
    

• liquibase.rollbackTag - reverts all changes that were made to the database after the specified tag:

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    Code Block
    mvn clean compile org.liquibase:liquibase-maven-plugin:3.8.7:rollback -Dliquibase.url=jdbc:postgresql://localhost:5432/cpsdb -Dliquibase.username=cps -Dliquibase.password=cps -Dliquibase.changeLogFile=changelog/changelog-master.yaml -Dliquibase.rollbackTag=<liquibase_tag_for_changesets_to_be_rolled_back>

    
    

• liquibase.rollbackDate - reverts all changes made to your database from today's date to the date and time you specify.

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    Code Block
    mvn clean compile org.liquibase:liquibase-maven-plugin:3.8.7:rollback -Dliquibase.url=jdbc:postgresql://localhost:5432/cpsdb -Dliquibase.username=cps -Dliquibase.password=cps -Dliquibase.changeLogFile=changelog/changelog-master.yaml -Dliquibase.rollbackDate=2020-11-26

    
    

Steps to create checksum for yang-resource:

1. Build locally using

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  Code Block
  /onap/cps/cps-application$ mvn clean install -Pcps-ncmp-docker -DskiptTests=true then run /onap/cps/docker-compose$ VERSION=latest DB_USERNAME=cps DB_PASSWORD=cps docker-compose up -d

  
  

2. Run to create new dataspace

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  Code Block
  curl --location --request POST 'http://localhost:8883/cps/api/v1/dataspaces?dataspace-name=NSODemo' \ --header 'Authorization: Basic Y3BzdXNlcjpjcHNyMGNrcyE='

  
  

3. Run to insert a yang resource.

     NOTE: Remove all escape characters from file, check attached file for reference.

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  Code Block
  curl --location --request POST 'http://localhost:8883/cps/api/v1/dataspaces/NSODemo/schema-sets' \ --header 'Authorization: Basic Y3BzdXNlcjpjcHNyMGNrcyE=' \ --form 'file=@"****path-to-yang-file****"' \ --form 'schema-set-name="dmi-registry@2021-05-20.yang"'

  View file
  name dmi-registry.yang height 250

4. login to postgres and check the entry in table to verify checksum

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  Code Block
  psql -h localhost -p 5432 -U cps -d cpsdb select * from yang_resource where name like '%dmi%'; //replace dmi with your names

  
  

Note about rollback

See:

* https://docs.liquibase.com/concepts/bestpractices.html in "Always think about rollback" section
* https://docs.liquibase.com/workflows/liquibase-community/using-rollback.html