> ## Documentation Index > Fetch the complete documentation index at: https://api-docs.sevalla.com/llms.txt > Use this file to discover all available pages before exploring further. > ## Agent Instructions > This is the Sevalla REST API reference. Base URL: https://api.sevalla.com/v3. Authenticate with an API key in the Authorization header as a Bearer token. > The OpenAPI spec is at https://api.sevalla.com/v3/openapi.json. Concepts and dashboard guides are at https://docs.sevalla.com (index: https://docs.sevalla.com/llms.txt). > To act on a Sevalla account from an AI agent, prefer the Sevalla MCP server (https://mcp.sevalla.com/mcp, see https://docs.sevalla.com/ai-agents/overview.md) or the Sevalla CLI (https://api-docs.sevalla.com/v3/cli.md). # Get Dockerfile > Retrieve one Dockerfile version of an application, with the Dockerfile, its .dockerignore and whether Sevalla generated it with Ingot or it came from your repository. Use it with the `dockerfile_id` of a deployment to see what that deployment was built from, or fetch two versions to compare them. ## OpenAPI ````yaml https://api.sevalla.com/v3/openapi.json get /applications/{id}/dockerfiles/{dockerfile_id} openapi: 3.1.0 info: title: Sevalla API docs version: 1.0.0 servers: - url: https://api.sevalla.com/v3 security: - bearerAuth: [] paths: /applications/{id}/dockerfiles/{dockerfile_id}: get: tags: - Applications summary: Get Dockerfile description: >- Retrieve one Dockerfile version of an application, with the Dockerfile, its .dockerignore and whether Sevalla generated it with Ingot or it came from your repository. Use it with the `dockerfile_id` of a deployment to see what that deployment was built from, or fetch two versions to compare them. operationId: getApplicationDockerfileV3 parameters: - schema: example: fb5e5168-4281-4bec-94c5-0d1584e9e657 type: string format: uuid pattern: >- ^([0-9a-fA-F]{8}-[0-9a-fA-F]{4}-[1-8][0-9a-fA-F]{3}-[89abAB][0-9a-fA-F]{3}-[0-9a-fA-F]{12}|00000000-0000-0000-0000-000000000000|ffffffff-ffff-ffff-ffff-ffffffffffff)$ in: path name: id required: true description: Application identifier - schema: example: fb5e5168-4281-4bec-94c5-0d1584e9e657 type: string format: uuid pattern: >- ^([0-9a-fA-F]{8}-[0-9a-fA-F]{4}-[1-8][0-9a-fA-F]{3}-[89abAB][0-9a-fA-F]{3}-[0-9a-fA-F]{12}|00000000-0000-0000-0000-000000000000|ffffffff-ffff-ffff-ffff-ffffffffffff)$ in: path name: dockerfile_id required: true description: >- Dockerfile identifier, as returned in `dockerfile_id` of a deployment responses: '200': description: Default Response content: application/json: schema: type: object properties: id: type: string format: uuid pattern: >- ^([0-9a-fA-F]{8}-[0-9a-fA-F]{4}-[1-8][0-9a-fA-F]{3}-[89abAB][0-9a-fA-F]{3}-[0-9a-fA-F]{12}|00000000-0000-0000-0000-000000000000|ffffffff-ffff-ffff-ffff-ffffffffffff)$ description: Unique identifier for the Dockerfile version example: fb5e5168-4281-4bec-94c5-0d1584e9e657 app_id: type: string format: uuid pattern: >- ^([0-9a-fA-F]{8}-[0-9a-fA-F]{4}-[1-8][0-9a-fA-F]{3}-[89abAB][0-9a-fA-F]{3}-[0-9a-fA-F]{12}|00000000-0000-0000-0000-000000000000|ffffffff-ffff-ffff-ffff-ffffffffffff)$ description: Identifier of the application the Dockerfile belongs to example: fb5e5168-4281-4bec-94c5-0d1584e9e657 version: type: integer minimum: 1 maximum: 9007199254740991 description: >- Version number of the Dockerfile within its application, starting at 1. A new version is recorded only when a build uses a Dockerfile, .dockerignore or source that differs from the latest version. Otherwise the build reuses the latest version and updates its `language`, `facts` and `processes` to what Ingot detected, unless Ingot detected nothing. example: 3 source: type: string enum: - ingot - user description: >- Where the Dockerfile comes from: `ingot` - generated by Sevalla with Ingot for an application built with `ingot`; `user` - the Dockerfile from your repository, for an application built with `dockerfile` example: ingot dockerfile: type: string description: Content of the Dockerfile example: FROM node:22-slim AS build dockerignore: description: >- Content of the .dockerignore the build used. For `user` Dockerfiles this is `.dockerignore` next to the Dockerfile, or else `.dockerignore` in the build context, the same file Docker picks. Null when there is none. example: node_modules type: - string - 'null' ingot_version: description: >- Version of Ingot that first generated this Dockerfile. When it differs from the previous version, the change may come from an Ingot upgrade rather than from the application. Null for `user` Dockerfiles. example: v0.3.2 type: - string - 'null' language: description: >- Language Ingot detected in the application source, such as `node`, `python`, `php`, `go`, `ruby`, `rust`, `java`, `dotnet`, `elixir`, `deno`, `gleam`, `zig`, `cpp`, `static` (a static site) or `shell` (a start.sh script). For `user` Dockerfiles it is detected from the repository and does not come from your Dockerfile. Null when Ingot could not detect the application, and for versions recorded before this field existed. example: php type: - string - 'null' facts: type: array items: type: object properties: name: type: string description: >- What was detected, such as `framework`, `package manager`, or the language name for its version example: framework value: type: string description: The detected value example: Laravel source: description: >- Where the value came from, usually a file in the repository. `default` means nothing in the repository set it and Ingot used its default. example: composer.json type: string required: - name - value additionalProperties: false description: >- What Ingot detected about the application, such as its framework, runtime version and package manager, each with the file it came from. For `ingot` Dockerfiles these are the decisions listed in the Dockerfile header. Empty when `language` is null. processes: type: array items: type: object properties: kind: type: string description: >- Type of process: `worker` - a command that runs continuously next to the web server; `job` - a command that runs to completion before each deployment example: worker name: type: string description: Short name of the process example: queue command: type: string description: Command to run from the same image example: php artisan queue:work reason: type: string description: What in the application calls for the process example: app/Jobs/RecordVisit.php queues work required: - kind - name - command - reason additionalProperties: false description: >- Processes Ingot recommends running from the same image besides the web process, such as queue workers, schedulers or database migrations. These are suggestions and are not created for you. created_at: type: string format: date-time pattern: >- ^(?:(?:\d\d[2468][048]|\d\d[13579][26]|\d\d0[48]|[02468][048]00|[13579][26]00)-02-29|\d{4}-(?:(?:0[13578]|1[02])-(?:0[1-9]|[12]\d|3[01])|(?:0[469]|11)-(?:0[1-9]|[12]\d|30)|(?:02)-(?:0[1-9]|1\d|2[0-8])))T(?:(?:[01]\d|2[0-3]):[0-5]\d:[0-5]\d(?:\.\d+)?(?:Z))$ description: >- Timestamp when the Dockerfile version was first recorded, in ISO 8601 format example: '2025-01-30T00:00:00.000Z' required: - id - app_id - version - source - dockerfile - dockerignore - ingot_version - language - facts - processes - created_at additionalProperties: false '401': description: Default Response content: application/json: schema: type: object properties: message: type: string description: Error message example: Unauthorized status: type: integer minimum: -9007199254740991 maximum: 9007199254740991 description: HTTP status code example: 401 data: type: object properties: code: description: Error tracking code for support reference example: err-abc-123 type: string message: description: Additional error details or instructions example: >- If you need assistance, please contact support and provide this error code. type: string additionalProperties: false required: - message - status additionalProperties: false '403': description: Default Response content: application/json: schema: type: object properties: message: type: string description: Error message example: >- This API key is missing the : permission. Grant it to the key or use a key that has it. status: type: integer minimum: -9007199254740991 maximum: 9007199254740991 description: HTTP status code example: 403 data: type: object properties: code: description: Error tracking code for support reference example: err-abc-123 type: string message: description: Additional error details or instructions example: >- If you need assistance, please contact support and provide this error code. type: string additionalProperties: false required: - message - status additionalProperties: false '404': description: Default Response content: application/json: schema: type: object properties: message: type: string description: Error message example: Not found status: type: integer minimum: -9007199254740991 maximum: 9007199254740991 description: HTTP status code example: 404 data: type: object properties: code: description: Error tracking code for support reference example: err-abc-123 type: string message: description: Additional error details or instructions example: >- If you need assistance, please contact support and provide this error code. type: string additionalProperties: false required: - message - status additionalProperties: false '500': description: Default Response content: application/json: schema: type: object properties: message: type: string description: Error message example: Internal Server Error status: type: integer minimum: -9007199254740991 maximum: 9007199254740991 description: HTTP status code example: 500 data: type: object properties: code: description: Error tracking code for support reference example: err-abc-123 type: string message: description: Additional error details or instructions example: >- If you need assistance, please contact support and provide this error code. type: string additionalProperties: false required: - message - status additionalProperties: false components: securitySchemes: bearerAuth: type: http scheme: bearer description: >- API key authentication. Pass your API key as a Bearer token in the Authorization header. ```` This documentation is built and hosted on [Mintlify](https://mintlify.com), a developer documentation platform.