rails-postgresql.json

{
  "kind": "Template",
  "apiVersion": "template.openshift.io/v1",
  "metadata": {
    "name": "rails-postgresql-example",
    "annotations": {
      "openshift.io/display-name": "Rails + PostgreSQL (Ephemeral)",
      "description": "An example Rails application with a PostgreSQL database. For more information about using this template, including OpenShift considerations, see https://github.com/sclorg/rails-ex/blob/master/README.md.\n\nWARNING: Any data stored will be lost upon pod destruction. Only use this template for testing.",
      "tags": "quickstart,ruby,rails",
      "iconClass": "icon-ruby",
      "template.openshift.io/long-description": "This template defines resources needed to develop a Rails application, including a build configuration, application deployment configuration, and database deployment configuration.  The database is stored in non-persistent storage, so this configuration should be used for experimental purposes only.",
      "template.openshift.io/provider-display-name": "Red Hat, Inc.",
      "template.openshift.io/documentation-url": "https://github.com/sclorg/rails-ex",
      "template.openshift.io/support-url": "https://access.redhat.com"
    }
  },
  "message": "The following service(s) have been created in your project: ${NAME}, ${DATABASE_SERVICE_NAME}.\n\nFor more information about using this template, including OpenShift considerations, see https://github.com/sclorg/rails-ex/blob/master/README.md.",
  "labels": {
    "template": "rails-postgresql-example"
  },
  "objects": [
    {
      "kind": "Secret",
      "apiVersion": "v1",
      "metadata": {
        "name": "${NAME}",
        "annotations": {
          "template.openshift.io/expose-username": "{.data['application-user']}",
          "template.openshift.io/expose-password": "{.data['application-password']}"
        }
      },
      "stringData" : {
        "database-user" : "${DATABASE_USER}",
        "database-password" : "${DATABASE_PASSWORD}",
        "application-user" : "${APPLICATION_USER}",
        "application-password" : "${APPLICATION_PASSWORD}",
        "keybase" : "${SECRET_KEY_BASE}"
      }
    },
    {
      "kind": "Service",
      "apiVersion": "v1",
      "metadata": {
        "name": "${NAME}",
        "annotations": {
          "description": "Exposes and load balances the application pods",
          "service.alpha.openshift.io/dependencies": "[{\"name\": \"${DATABASE_SERVICE_NAME}\", \"kind\": \"Service\"}]"
        }
      },
      "spec": {
        "ports": [
          {
            "name": "web",
            "port": 8080,
            "targetPort": 8080
          }
        ],
        "selector": {
          "name": "${NAME}"
        }
      }
    },
    {
      "kind": "Route",
      "apiVersion": "route.openshift.io/v1",
      "metadata": {
        "name": "${NAME}",
        "annotations": {
          "template.openshift.io/expose-uri": "http://{.spec.host}{.spec.path}"
        }
      },
      "spec": {
        "host": "${APPLICATION_DOMAIN}",
        "to": {
          "kind": "Service",
          "name": "${NAME}"
        }
      }
    },
    {
      "kind": "ImageStream",
      "apiVersion": "image.openshift.io/v1",
      "metadata": {
        "name": "${NAME}",
        "annotations": {
          "description": "Keeps track of changes in the application image"
        }
      }
    },
    {
      "kind": "BuildConfig",
      "apiVersion": "build.openshift.io/v1",
      "metadata": {
        "name": "${NAME}",
        "annotations": {
          "description": "Defines how to build the application",
          "template.alpha.openshift.io/wait-for-ready": "true"
        }
      },
      "spec": {
        "source": {
          "type": "Git",
          "git": {
            "uri": "${SOURCE_REPOSITORY_URL}",
            "ref": "${SOURCE_REPOSITORY_REF}"
          },
          "contextDir": "${CONTEXT_DIR}"
        },
        "strategy": {
          "type": "Source",
          "sourceStrategy": {
            "from": {
              "kind": "ImageStreamTag",
              "namespace": "${NAMESPACE}",
              "name": "ruby:${RUBY_VERSION}"
            },
            "env": [
              {
                "name": "RUBYGEM_MIRROR",
                "value": "${RUBYGEM_MIRROR}"
              }
            ]
          }
        },
        "output": {
          "to": {
            "kind": "ImageStreamTag",
            "name": "${NAME}:latest"
          }
        },
        "triggers": [
          {
            "type": "ImageChange"
          },
          {
            "type": "ConfigChange"
          },
          {
            "type": "GitHub",
            "github": {
              "secret": "${GITHUB_WEBHOOK_SECRET}"
            }
          }
        ],
        "postCommit": {
          "script": "bundle exec rake test"
        }
      }
    },
    {
      "kind": "Deployment",
      "apiVersion": "apps/v1",
      "metadata": {
        "name": "${NAME}",
        "annotations": {
          "description": "Defines how to deploy the application server",
          "template.alpha.openshift.io/wait-for-ready": "true",
          "image.openshift.io/triggers": "[{\"from\":{\"kind\":\"ImageStreamTag\",\"name\":\"${NAME}:latest\"},\"fieldPath\": \"spec.template.spec.containers[0].image\"}]"
        }
      },
      "spec": {
        "strategy": {
          "type": "Recreate",
          "recreateParams": {
            "pre": {
              "failurePolicy": "Abort",
              "execNewPod": {
                "command": [
                  "./migrate-database.sh"
                ],
                "containerName": "${NAME}"
              }
            }
          }
        },
        "replicas": 1,
        "selector": {
          "name": "${NAME}"
        },
        "template": {
          "metadata": {
            "name": "${NAME}",
            "labels": {
              "name": "${NAME}"
            }
          },
          "spec": {
            "containers": [
              {
                "name": "${NAME}",
                "image": " ",
                "ports": [
                  {
                    "containerPort": 8080
                  }
                ],
                "readinessProbe": {
                  "timeoutSeconds": 3,
                  "initialDelaySeconds": 5,
                  "httpGet": {
                    "path": "/articles",
                    "port": 8080
                  }
                },
                "livenessProbe": {
                  "timeoutSeconds": 3,
                  "initialDelaySeconds": 10,
                  "httpGet": {
                    "path": "/articles",
                    "port": 8080
                  }
                },
                "env": [
                  {
                    "name": "DATABASE_SERVICE_NAME",
                    "value": "${DATABASE_SERVICE_NAME}"
                  },
                  {
                    "name": "POSTGRESQL_USER",
                    "valueFrom": {
                      "secretKeyRef" : {
                        "name" : "${NAME}",
                        "key" : "database-user"
                      }
                    }
                  },
                  {
                    "name": "POSTGRESQL_PASSWORD",
                    "valueFrom": {
                      "secretKeyRef" : {
                        "name" : "${NAME}",
                        "key" : "database-password"
                      }
                    }
                  },
                  {
                    "name": "POSTGRESQL_DATABASE",
                    "value": "${DATABASE_NAME}"
                  },
                  {
                    "name": "SECRET_KEY_BASE",
                    "valueFrom": {
                      "secretKeyRef" : {
                        "name" : "${NAME}",
                        "key" : "keybase"
                      }
                    }
                  },
                  {
                    "name": "POSTGRESQL_MAX_CONNECTIONS",
                    "value": "${POSTGRESQL_MAX_CONNECTIONS}"
                  },
                  {
                    "name": "POSTGRESQL_SHARED_BUFFERS",
                    "value": "${POSTGRESQL_SHARED_BUFFERS}"
                  },
                  {
                    "name": "APPLICATION_DOMAIN",
                    "value": "${APPLICATION_DOMAIN}"
                  },
                  {
                    "name": "APPLICATION_USER",
                    "valueFrom": {
                      "secretKeyRef" : {
                        "name" : "${NAME}",
                        "key" : "application-user"
                      }
                    }
                  },
                  {
                    "name": "APPLICATION_PASSWORD",
                    "valueFrom": {
                      "secretKeyRef" : {
                        "name" : "${NAME}",
                        "key" : "application-password"
                      }
                    }
                  },
                  {
                    "name": "RAILS_ENV",
                    "value": "${RAILS_ENV}"
                  }
                ],
                "resources": {
                  "limits": {
                    "memory": "${MEMORY_LIMIT}"
                  }
                }
              }
            ]
          }
        }
      }
    },
    {
      "kind": "Service",
      "apiVersion": "v1",
      "metadata": {
        "name": "${DATABASE_SERVICE_NAME}",
        "annotations": {
          "description": "Exposes the database server"
        }
      },
      "spec": {
        "ports": [
          {
            "name": "postgresql",
            "port": 5432,
            "targetPort": 5432
          }
        ],
        "selector": {
          "name": "${DATABASE_SERVICE_NAME}"
        }
      }
    },
    {
      "kind": "Deployment",
      "apiVersion": "apps/v1",
      "metadata": {
        "name": "${DATABASE_SERVICE_NAME}",
        "annotations": {
          "description": "Defines how to deploy the database",
          "template.alpha.openshift.io/wait-for-ready": "true",
          "image.openshift.io/triggers": "[{\"from\":{\"kind\":\"ImageStreamTag\",\"name\":\"postgresql:12-el8\"},\"fieldPath\": \"spec.template.spec.containers[0].image\"}]"
        }
      },
      "spec": {
        "strategy": {
          "type": "Recreate"
        },
        "replicas": 1,
        "selector": {
          "name": "${DATABASE_SERVICE_NAME}"
        },
        "template": {
          "metadata": {
            "name": "${DATABASE_SERVICE_NAME}",
            "labels": {
              "name": "${DATABASE_SERVICE_NAME}"
            }
          },
          "spec": {
            "volumes": [
              {
                "name": "data",
                "emptyDir": {}
              }
            ],
            "containers": [
              {
                "name": "postgresql",
                "image": " ",
                "ports": [
                  {
                    "containerPort": 5432
                  }
                ],
                "readinessProbe": {
                  "timeoutSeconds": 1,
                  "initialDelaySeconds": 5,
                  "exec": {
                    "command": [ "/bin/sh", "-i", "-c", "psql -h 127.0.0.1 -U ${POSTGRESQL_USER} -q -d ${POSTGRESQL_DATABASE} -c 'SELECT 1'"]
                  }
                },
                "livenessProbe": {
                  "timeoutSeconds": 1,
                  "initialDelaySeconds": 30,
                  "tcpSocket": {
                    "port": 5432
                  }
                },
                "volumeMounts": [
                  {
                    "name": "data",
                    "mountPath": "/var/lib/pgsql/data"
                  }
                ],
                "env": [
                  {
                    "name": "POSTGRESQL_USER",
                    "valueFrom": {
                      "secretKeyRef" : {
                        "name" : "${NAME}",
                        "key" : "database-user"
                      }
                    }
                  },
                  {
                    "name": "POSTGRESQL_PASSWORD",
                    "valueFrom": {
                      "secretKeyRef" : {
                        "name" : "${NAME}",
                        "key" : "database-password"
                      }
                    }
                  },
                  {
                    "name": "POSTGRESQL_DATABASE",
                    "value": "${DATABASE_NAME}"
                  },
                  {
                    "name": "POSTGRESQL_MAX_CONNECTIONS",
                    "value": "${POSTGRESQL_MAX_CONNECTIONS}"
                  },
                  {
                    "name": "POSTGRESQL_SHARED_BUFFERS",
                    "value": "${POSTGRESQL_SHARED_BUFFERS}"
                  }
                ],
                "resources": {
                  "limits": {
                    "memory": "${MEMORY_POSTGRESQL_LIMIT}"
                  }
                }
              }
            ]
          }
        }
      }
    }
  ],
  "parameters": [
    {
      "name": "NAME",
      "displayName": "Name",
      "description": "The name assigned to all of the frontend objects defined in this template.",
      "required": true,
      "value": "rails-postgresql-example"
    },
    {
      "name": "NAMESPACE",
      "displayName": "Namespace",
      "required": true,
      "description": "The OpenShift Namespace where the ImageStream resides.",
      "value": "openshift"
    },
    {
      "name": "RUBY_VERSION",
      "displayName": "Ruby Version",
      "description": "Version of Ruby image to be used (3.0-ubi9 by default).",
      "required": true,
      "value": "3.3-ubi9"
    },
    {
      "name": "MEMORY_LIMIT",
      "displayName": "Memory Limit",
      "required": true,
      "description": "Maximum amount of memory the Rails container can use.",
      "value": "512Mi"
    },
    {
      "name": "MEMORY_POSTGRESQL_LIMIT",
      "displayName": "Memory Limit (PostgreSQL)",
      "required": true,
      "description": "Maximum amount of memory the PostgreSQL container can use.",
      "value": "512Mi"
    },
    {
      "name": "SOURCE_REPOSITORY_URL",
      "displayName": "Git Repository URL",
      "required": true,
      "description": "The URL of the repository with your application source code.",
      "value": "https://github.com/sclorg/rails-ex.git"
    },
    {
      "name": "SOURCE_REPOSITORY_REF",
      "displayName": "Git Reference",
      "description": "Set this to a branch name, tag or other ref of your repository if you are not using the default branch."
    },
    {
      "name": "CONTEXT_DIR",
      "displayName": "Context Directory",
      "description": "Set this to the relative path to your project if it is not in the root of your repository."
    },
    {
      "name": "APPLICATION_DOMAIN",
      "displayName": "Application Hostname",
      "description": "The exposed hostname that will route to the Rails service, if left blank a value will be defaulted.",
      "value": ""
    },
    {
      "name": "GITHUB_WEBHOOK_SECRET",
      "displayName": "GitHub Webhook Secret",
      "description": "Github trigger secret.  A difficult to guess string encoded as part of the webhook URL.  Not encrypted.",
      "generate": "expression",
      "from": "[a-zA-Z0-9]{40}"
    },
    {
      "name": "SECRET_KEY_BASE",
      "displayName": "Secret Key",
      "description": "Your secret key for verifying the integrity of signed cookies.",
      "generate": "expression",
      "from": "[a-z0-9]{127}"
    },
    {
      "name": "APPLICATION_USER",
      "displayName": "Application Username",
      "required": true,
      "description": "The application user that is used within the sample application to authorize access on pages.",
      "value": "openshift"
    },
    {
      "name": "APPLICATION_PASSWORD",
      "displayName": "Application Password",
      "required": true,
      "description": "The application password that is used within the sample application to authorize access on pages.",
      "value": "secret"
    },
    {
      "name": "RAILS_ENV",
      "displayName": "Rails Environment",
      "required": true,
      "description": "Environment under which the sample application will run. Could be set to production, development or test.",
      "value": "production"
    },
    {
      "name": "DATABASE_SERVICE_NAME",
      "required": true,
      "displayName": "Database Service Name",
      "value": "postgresql"
    },
    {
      "name": "DATABASE_USER",
      "displayName": "Database Username",
      "generate": "expression",
      "from": "user[A-Z0-9]{3}"
    },
    {
      "name": "DATABASE_PASSWORD",
      "displayName": "Database Password",
      "generate": "expression",
      "from": "[a-zA-Z0-9]{8}"
    },
    {
      "name": "DATABASE_NAME",
      "required": true,
      "displayName": "Database Name",
      "value": "root"
    },
    {
      "name": "POSTGRESQL_MAX_CONNECTIONS",
      "displayName": "Maximum Database Connections",
      "value": "100"
    },
    {
      "name": "POSTGRESQL_SHARED_BUFFERS",
      "displayName": "Shared Buffer Amount",
      "value": "12MB"
    },
    {
      "name": "RUBYGEM_MIRROR",
      "displayName": "Custom RubyGems Mirror URL",
      "description": "The custom RubyGems mirror URL",
      "value": ""
    }
  ]
}