Migrating from Bamboo with GitHub Actions Importer

Learn how to use GitHub Actions Importer to automate the migration of your Bamboo pipelines to GitHub Actions.

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About migrating from Bamboo with GitHub Actions Importer

The instructions below will guide you through configuring your environment to use GitHub Actions Importer to migrate Bamboo pipelines to GitHub Actions.

Prerequisites

  • A Bamboo account or organization with projects and pipelines that you want to convert to GitHub Actions workflows.
  • Bamboo version of 7.1.1 or greater.
  • Access to create a Bamboo personal access token for your account or organization.
  • Um ambiente em que seja possível executar contêineres baseados no Linux e instalar as ferramentas necessárias.

    Observação

    A CLI e o contêiner do GitHub Actions Importer não precisam ser instalados no mesmo servidor que a plataforma de CI.

Limitations

There are some limitations when migrating from Bamboo to GitHub Actions with GitHub Actions Importer:

  • GitHub Actions Importer relies on the YAML specification generated by the Bamboo Server to perform migrations. When Bamboo does not support exporting something to YAML, the missing information is not migrated.
  • Trigger conditions are unsupported. When GitHub Actions Importer encounters a trigger with a condition, the condition is surfaced as a comment and the trigger is transformed without it.
  • Bamboo Plans with customized settings for storing artifacts are not transformed. Instead, artifacts are stored and retrieved using the upload-artifact and download-artifact actions.
  • Disabled plans must be disabled manually in the GitHub UI. For more information, see Disabling and enabling a workflow.
  • Disabled jobs are transformed with a if: false condition which prevents it from running. You must remove this to re-enable the job.
  • Disabled tasks are not transformed because they are not included in the exported plan when using the Bamboo API.
  • Bamboo provides options to clean up build workspaces after a build is complete. These are not transformed because it is assumed GitHub-hosted runners or ephemeral self-hosted runners will automatically handle this.
  • The hanging build detection options are not transformed because there is no equivalent in GitHub Actions. The closest option is timeout-minutes on a job, which can be used to set the maximum number of minutes to let a job run. For more information, see Sintaxe de fluxo de trabalho para o GitHub Actions.
  • Pattern match labeling is not transformed because there is no equivalent in GitHub Actions.
  • All artifacts are transformed into an actions/upload-artifact, regardless of whether they are shared or not, so they can be downloaded from any job in the workflow.
  • Permissions are not transformed because there is no suitable equivalent in GitHub Actions.
  • If the Bamboo version is between 7.1.1 and 8.1.1, project and plan variables will not be migrated.

Manual tasks

Certain Bamboo constructs must be migrated manually. These include:

  • Masked variables
  • Artifact expiry settings

Installing the GitHub Actions Importer CLI extension

  1. Instale a extensão da CLI do GitHub Actions Importer:

    Bash
    gh extension install github/gh-actions-importer

  2. Verifique se a extensão foi instalada:

    $ gh actions-importer -h
Options:
  -?, -h, --help  Show help and usage information

Commands:
  update     Update to the latest version of GitHub Actions Importer.
  version    Display the version of GitHub Actions Importer.
  configure  Start an interactive prompt to configure credentials used to authenticate with your CI server(s).
  audit      Plan your CI/CD migration by analyzing your current CI/CD footprint.
  forecast   Forecast GitHub Actions usage from historical pipeline utilization.
  dry-run    Convert a pipeline to a GitHub Actions workflow and output its yaml file.
  migrate    Convert a pipeline to a GitHub Actions workflow and open a pull request with the changes.

Configuring credentials

The configure CLI command is used to set required credentials and options for GitHub Actions Importer when working with Bamboo and GitHub.

  1. Create a GitHub personal access token (classic). For more information, see Gerenciar seus tokens de acesso pessoal.

    Your token must have the workflow scope.

    After creating the token, copy it and save it in a safe location for later use.

  2. Create a Bamboo personal access token. For more information, see Personal Access Tokens in the Bamboo documentation.

    Your token must have the following permissions, depending on which resources will be transformed.

    Resource TypeViewView ConfigurationEdit
    Build Plan
    Deployment Project
    Deployment Environment

    After creating the token, copy it and save it in a safe location for later use.

  3. In your terminal, run the GitHub Actions Importer configure CLI command:

    gh actions-importer configure

    The configure command will prompt you for the following information:

    • For "Which CI providers are you configuring?", use the arrow keys to select Bamboo, press Space to select it, then press Enter.
    • For "Personal access token for GitHub", enter the value of the personal access token (classic) that you created earlier, and press Enter.
    • For "Base url of the GitHub instance", enter the URL for sua instância do GitHub Enterprise Server, and press Enter.
    • For "Personal access token for Bamboo", enter the value for the Bamboo personal access token that you created earlier, and press Enter.
    • For "Base url of the Bamboo instance", enter the URL for your Bamboo Server or Bamboo Data Center instance, and press Enter.

    An example of the configure command is shown below:

    $ gh actions-importer configure
✔ Which CI providers are you configuring?: Bamboo
Enter the following values (leave empty to omit):
✔ Personal access token for GitHub: ***************
✔ Base url of the GitHub instance: http://github.com
✔ Personal access token for Bamboo: ********************
✔ Base url of the Bamboo instance: http://bamboo.example.com
Environment variables successfully updated.

  4. In your terminal, run the GitHub Actions Importer update CLI command to connect to GitHub Packages Container registry and ensure that the container image is updated to the latest version:

    gh actions-importer update

    The output of the command should be similar to below:

    Updating ghcr.io/actions-importer/cli:latest...
ghcr.io/actions-importer/cli:latest up-to-date

Perform an audit of Bamboo

You can use the audit command to get a high-level view of all projects in a Bamboo organization.

The audit command performs the following steps:

  1. Fetches all of the projects defined in a Bamboo organization.
  2. Converts each pipeline to its equivalent GitHub Actions workflow.
  3. Generates a report that summarizes how complete and complex of a migration is possible with GitHub Actions Importer.

Running the audit command

To perform an audit of a Bamboo instance, run the following command in your terminal:

gh actions-importer audit bamboo --output-dir tmp/audit

Inspecting the audit results

Os arquivos do diretório de saída especificado contêm os resultados da auditoria. Confira o arquivo audit_summary.md para ver um resumo dos resultados da auditoria.

O resumo da auditoria contém as seções a seguir.

Pipelines

A seção "Pipelines" contém estatísticas de alto nível sobre a taxa de conversão feita pelo GitHub Actions Importer.

Veja abaixo alguns termos importantes que podem aparecer na seção "Pipelines":

  • Os pipelines Bem-sucedidos tiveram 100% dos constructos e itens individuais convertidos automaticamente nos equivalentes do GitHub Actions.
  • Os pipelines parcialmente bem-sucedidos tiveram todos os constructos de pipeline convertidos, porém, houve alguns itens individuais que não foram convertidos automaticamente nos GitHub Actions equivalentes.
  • Os pipelines Sem suporte são tipos de definição que não têm suporte no GitHub Actions Importer.
  • Os pipelines com falha encontraram um erro fatal ao serem convertidos. Isso pode ocorrer por uma das seguintes razões:
    • O pipeline foi originalmente configurado de forma incorreta e inválida.
    • O GitHub Actions Importer encontrou um erro interno ao convertê-lo.
    • Houve uma resposta de rede malsucedida que tornou o pipeline inacessível, o que geralmente ocorre devido a credenciais inválidas.

Etapas de Build

A seção "Etapas de compilação" contém uma visão geral das etapas de compilação individuais usadas em todos os pipelines e indica quantas delas foram convertidas automaticamente pelo GitHub Actions Importer.

Veja abaixo alguns termos importantes que podem aparecer na seção "Etapas de compilação":

  • Uma etapa de compilação conhecida foi convertida automaticamente em uma ação equivalente.
  • Uma etapa de compilação desconhecida não foi convertida automaticamente em uma ação equivalente.
  • Uma etapa de compilação sem suporte é aquela que:
    • Fundamentalmente, não tem suporte no GitHub Actions.
    • Foi configurada de maneira incompatível com o GitHub Actions.
  • Uma ação é uma lista das ações que foram usadas nos fluxos de trabalho convertidos. Isso pode ser importante para:
    • Se você usar o GitHub Enterprise Server, reunir a lista de ações a serem sincronizadas com a sua instância.
    • Definir uma lista de permissões no nível da organização das ações que são usadas. Essa lista de ações é abrangente e inclui as ações que as equipes de segurança ou conformidade podem precisar analisar.

Tarefas manuais

A seção "Tarefas manuais" contém uma visão geral das tarefas que o GitHub Actions Importer não consegue executar automaticamente e que precisam ser realizadas de maneira manual.

Veja abaixo alguns termos importantes que podem aparecer na seção "Tarefas manuais":

  • Um segredo é um repositório ou um segredo no nível da organização que é usado nos pipelines convertidos. Esses segredos devem ser criados manualmente no GitHub Actions para que os pipelines funcionem de maneira correta. Para saber mais, confira Using secrets in GitHub Actions.
  • Um executor auto-hospedado refere-se a um rótulo de um executor que é referenciado em um pipeline convertido e que não é hospedado no GitHub. Será necessário definir manualmente esses executores para que os pipelines funcionem de maneira correta.

Arquivos

A seção final do relatório de auditoria fornece um manifesto de todos os arquivos que foram gravados em disco durante a auditoria.

Cada arquivo de pipeline tem uma variedade de arquivos contidos na auditoria, incluindo:

  • O pipeline original como foi definido no GitHub.
  • Todas as respostas de rede usadas para converter o pipeline.
  • O arquivo de fluxo de trabalho convertido.
  • Rastreamentos de pilha que podem ser usados para solucionar problemas de uma conversão de pipeline com falha.

Além disso, o arquivo workflow_usage.csv contém uma lista separada por vírgula de todas as ações, todos os segredos e todos os executores usados pelos pipelines convertidos com sucesso. Isso pode ser útil para determinar quais fluxos de trabalho usam quais ações, segredos ou executores e para executar revisões de segurança.

Forecasting usage

You can use the forecast command to forecast potential GitHub Actions usage by computing metrics from completed pipeline runs in your Bamboo instance.

Running the forecast command

To perform a forecast of potential GitHub Actions usage, run the following command in your terminal. By default, GitHub Actions Importer includes the previous seven days in the forecast report.

gh actions-importer forecast bamboo --output-dir tmp/forecast_reports

Forecasting a project

To limit the forecast to the plans and deployments environments associated with a project, you can use the --project option, where the value is set to a build project key.

For example:

gh actions-importer forecast bamboo --project PAN --output-dir tmp/forecast_reports

Inspecting the forecast report

The forecast_report.md file in the specified output directory contains the results of the forecast.

Listed below are some key terms that can appear in the forecast report:

  • The job count is the total number of completed jobs.
  • The pipeline count is the number of unique pipelines used.
  • Execution time describes the amount of time a runner spent on a job. This metric can be used to help plan for the cost of GitHub-hosted runners.
    • This metric is correlated to how much you should expect to spend in GitHub Actions. This will vary depending on the hardware used for these minutes. You can use the GitHub Actions pricing calculator to estimate the costs.
  • Queue time metrics describe the amount of time a job spent waiting for a runner to be available to execute it.
  • Concurrent jobs metrics describe the amount of jobs running at any given time. This metric can be used to

Perform a dry-run migration of a Bamboo pipeline

You can use the dry-run command to convert a Bamboo pipeline to an equivalent GitHub Actions workflow. A dry-run creates the output files in a specified directory, but does not open a pull request to migrate the pipeline.

Running a dry-run migration for a build plan

To perform a dry run of migrating your Bamboo build plan to GitHub Actions, run the following command in your terminal, replacing :my_plan_slug with the plan's project and plan key in the format <projectKey>-<planKey> (for example: PAN-SCRIP).

gh actions-importer dry-run bamboo build --plan-slug :my_plan_slug --output-dir tmp/dry-run

Running a dry-run migration for a deployment project

To perform a dry run of migrating your Bamboo deployment project to GitHub Actions, run the following command in your terminal, replacing :my_deployment_project_id with the ID of the deployment project you are converting.

gh actions-importer dry-run bamboo deployment --deployment-project-id :my_deployment_project_id --output-dir tmp/dry-run

You can view the logs of the dry run and the converted workflow files in the specified output directory.

No caso de qualquer item que o GitHub Actions Importer não tenha conseguido converter automaticamente, como etapas de build desconhecidas ou um pipeline parcialmente bem-sucedido, o ideal é criar transformadores personalizados para personalizar ainda mais o processo de conversão. Para saber mais, confira Extending GitHub Actions Importer with custom transformers.

Perform a production migration of a Bamboo pipeline

You can use the migrate command to convert a Bamboo pipeline and open a pull request with the equivalent GitHub Actions workflow.

Running the migrate command for a build plan

To migrate a Bamboo build plan to GitHub Actions, run the following command in your terminal, replacing the target-url value with the URL for your GitHub repository, and :my_plan_slug with the plan's project and plan key in the format <projectKey>-<planKey>.

gh actions-importer migrate bamboo build --plan-slug :my_plan_slug --target-url :target_url --output-dir tmp/migrate

The command's output includes the URL to the pull request that adds the converted workflow to your repository. An example of a successful output is similar to the following:

$ gh actions-importer migrate bamboo build --plan-slug :PROJECTKEY-PLANKEY --target-url http://github.com/octo-org/octo-repo --output-dir tmp/migrate
[2022-08-20 22:08:20] Logs: 'tmp/migrate/log/actions-importer-20220916-014033.log'
[2022-08-20 22:08:20] Pull request: 'http://github.com/octo-org/octo-repo/pull/1'

Running the migrate command for a deployment project

To migrate a Bamboo deployment project to GitHub Actions, run the following command in your terminal, replacing the target-url value with the URL for your GitHub repository, and :my_deployment_project_id with the ID of the deployment project you are converting.

gh actions-importer migrate bamboo deployment --deployment-project-id :my_deployment_project_id --target-url :target_url --output-dir tmp/migrate

The command's output includes the URL to the pull request that adds the converted workflow to your repository. An example of a successful output is similar to the following:

$ gh actions-importer migrate bamboo deployment --deployment-project-id 123 --target-url http://github.com/octo-org/octo-repo --output-dir tmp/migrate
[2023-04-20 22:08:20] Logs: 'tmp/migrate/log/actions-importer-20230420-014033.log'
[2023-04-20 22:08:20] Pull request: 'http://github.com/octo-org/octo-repo/pull/1'

Como inspecionar a solicitação de pull

A saída de uma execução bem-sucedida do comando migrate contém um link para a nova solicitação de pull que adiciona o fluxo de trabalho convertido ao seu repositório.

Alguns elementos importantes da solicitação de pull incluem:

  • Na descrição da solicitação de pull, uma seção chamada Etapas manuais, que lista as etapas que você precisa concluir manualmente para concluir a migração dos pipelines para o GitHub Actions. Por exemplo, esta seção pode solicitar a criação dos segredos usados nos fluxos de trabalho.
  • O arquivo de fluxos de trabalho convertido. Selecione a guia Files changed na pull request para ver o arquivo de fluxo de trabalho que será adicionado ao repositório do GitHub.

Quando terminar de inspecionar a pull request, você poderá mesclá-la para adicionar o fluxo de trabalho ao repositório do GitHub.

Reference

This section contains reference information on environment variables, optional arguments, and supported syntax when using GitHub Actions Importer to migrate from Bamboo.

Using environment variables

O GitHub Actions Importer usa variáveis de ambiente para a configuração de autenticação. Essas variáveis são definidas durante o processo de configuração com o comando configure. Para obter mais informações, confira a seção Como configurar as credenciais.

GitHub Actions Importer uses the following environment variables to connect to your Bamboo instance:

  • GITHUB_ACCESS_TOKEN: The personal access token (classic) used to create pull requests with a converted workflow (requires repo and workflow scopes).
  • GITHUB_INSTANCE_URL: The URL to the target GitHub instance (for example, http://github.com).
  • BAMBOO_ACCESS_TOKEN: The Bamboo personal access token used to authenticate with your Bamboo instance.
  • BAMBOO_INSTANCE_URL: The URL to the Bamboo instance (for example, http://bamboo.example.com).

These environment variables can be specified in a .env.local file that is loaded by GitHub Actions Importer when it is run.

Optional arguments

Há argumentos opcionais que você pode usar com os subcomandos do GitHub Actions Importer para personalizar sua migração.

--source-file-path

You can use the --source-file-path argument with the dry-run or migrate subcommands.

By default, GitHub Actions Importer fetches pipeline contents from the Bamboo instance. The --source-file-path argument tells GitHub Actions Importer to use the specified source file path instead.

For example:

gh actions-importer dry-run bamboo build --plan-slug IN-COM -o tmp/bamboo --source-file-path ./path/to/my/bamboo/file.yml

--config-file-path

You can use the --config-file-path argument with the audit, dry-run, and migrate subcommands.

By default, GitHub Actions Importer fetches pipeline contents from the Bamboo instance. The --config-file-path argument tells GitHub Actions Importer to use the specified source files instead.

Audit example

In this example, GitHub Actions Importer uses the specified YAML configuration file to perform an audit.

gh actions-importer audit bamboo -o tmp/bamboo --config-file-path "./path/to/my/bamboo/config.yml"

To audit a Bamboo instance using a config file, the config file must be in the following format, and each repository_slug must be unique:

source_files:
  - repository_slug: IN/COM
    path: path/to/one/source/file.yml
  - repository_slug: IN/JOB
    path: path/to/another/source/file.yml
Dry run example

In this example, GitHub Actions Importer uses the specified YAML configuration file as the source file to perform a dry run.

The repository slug is built using the --plan-slug option. The source file path is matched and pulled from the specified source file.

gh actions-importer dry-run bamboo build --plan-slug IN-COM -o tmp/bamboo --config-file-path "./path/to/my/bamboo/config.yml"

Supported syntax for Bamboo pipelines

The following table shows the type of properties that GitHub Actions Importer is currently able to convert.

BambooGitHub ActionsStatus
environmentsjobsSupported
environments.<environment_id>jobs.<job_id>Supported
<job_id>.artifactsjobs.<job_id>.steps.actions/upload-artifactSupported
<job_id>.artifact-subscriptionsjobs.<job_id>.steps.actions/download-artifactSupported
<job_id>.dockerjobs.<job_id>.containerSupported
<job_id>.final-tasksjobs.<job_id>.steps.ifSupported
<job_id>.requirementsjobs.<job_id>.runs-onSupported
<job_id>.tasksjobs.<job_id>.stepsSupported
<job_id>.variablesjobs.<job_id>.envSupported
stagesjobs.<job_id>.needsSupported
stages.<stage_id>.finaljobs.<job_id>.ifSupported
stages.<stage_id>.jobsjobsSupported
stages.<stage_id>.jobs.<job_id>jobs.<job_id>Supported
stages.<stage_id>.manualjobs.<job_id>.environmentSupported
triggersonSupported
dependenciesjobs.<job_id>.steps.<gh cli step>Partially Supported
branchesNot applicableUnsupported
deployment.deployment-permissionsNot applicableUnsupported
environment-permissionsNot applicableUnsupported
notificationsNot applicableUnsupported
plan-permissionsNot applicableUnsupported
release-namingNot applicableUnsupported
repositoriesNot applicableUnsupported

For more information about supported Bamboo concept and plugin mappings, see the github/gh-actions-importer repository.

Environment variable mapping

GitHub Actions Importer uses the mapping in the table below to convert default Bamboo environment variables to the closest equivalent in GitHub Actions.

BambooGitHub Actions
bamboo.agentId${{ github.runner_name }}
bamboo.agentWorkingDirectory${{ github.workspace }}
bamboo.buildKey${{ github.workflow }}-${{ github.job }}
bamboo.buildNumber${{ github.run_id }}
bamboo.buildPlanName${{ github.repository }}-${{ github.workflow }}-${{ github.job }
bamboo.buildResultKey${{ github.workflow }}-${{ github.job }}-${{ github.run_id }}
bamboo.buildResultsUrl${{ github.server_url }}/${{ github.repository }}/actions/runs/${{ github.run_id }}
bamboo.build.working.directory${{ github.workspace }}
bamboo.deploy.project${{ github.repository }}
bamboo.ManualBuildTriggerReason.userName${{ github.actor }}
bamboo.planKey${{ github.workflow }}
bamboo.planName${{ github.repository }}-${{ github.workflow }}
bamboo.planRepository.branchDisplayName${{ github.ref }}
bamboo.planRepository.<position>.branch${{ github.ref }}
bamboo.planRepository.<position>.branchName${{ github.ref }}
bamboo.planRepository.<position>.name${{ github.repository }}
bamboo.planRepository.<position>.repositoryUrl${{ github.server }}/${{ github.repository }}
bamboo.planRepository.<position>.revision${{ github.sha }}
bamboo.planRepository.<position>.username${{ github.actor}}
bamboo.repository.branch.name${{ github.ref }}
bamboo.repository.git.branch${{ github.ref }}
bamboo.repository.git.repositoryUrl${{ github.server }}/${{ github.repository }}
bamboo.repository.pr.key${{ github.event.pull_request.number }}
bamboo.repository.pr.sourceBranch${{ github.event.pull_request.head.ref }}
bamboo.repository.pr.targetBranch${{ github.event.pull_request.base.ref }}
bamboo.resultsUrl${{ github.server_url }}/${{ github.repository }}/actions/runs/${{ github.run_id }}
bamboo.shortJobKey${{ github.job }}
bamboo.shortJobName${{ github.job }}
bamboo.shortPlanKey${{ github.workflow }}
bamboo.shortPlanName${{ github.workflow }}

Observação

Unknown variables are transformed to ${{ env.<variableName> }} and must be replaced or added under env for proper operation. For example, ${bamboo.jira.baseUrl} will become ${{ env.jira_baseUrl }}.

System Variables

System variables used in tasks are transformed to the equivalent bash shell variable and are assumed to be available. For example, ${system.<variable.name>} will be transformed to $variable_name. We recommend you verify this to ensure proper operation of the workflow.

Partes foram adaptadas do http://github.com/github/gh-actions-importer/ de acordo com a licença MIT:

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