Reference / component / v1.3.0
Every example below is validated against the schema on this page in CI, so an example that does not validate fails the build rather than shipping.
specVersion: v1
kind: COMPONENT
metadata:
revision: 1
description: Web application built from its Git repository with a Dockerfile.
spec:
type: SERVICE
workload:
source:
git:
repositoryURL: https://github.com/musher-dev/examples
ref:
branch: main
build:
dockerfile: Dockerfile
arguments:
NODE_ENV: production
command:
- node
- server.js
endpoints:
web:
targetPort: 8080
protocol: HTTP
health:
readiness:
http:
endpoint: web
path: /healthz
periodSeconds: 10
failureThreshold: 3
specVersion: v1
kind: COMPONENT
metadata:
revision: 1
description: Managed PostgreSQL database run by a provider outside this platform and addressed by its host.
spec:
type: EXTERNAL
contract:
inputs:
host:
description: Hostname of the managed database server.
schema:
type: string
presentationHint: HOSTNAME
port:
description: Port the managed database server listens on.
schema:
type: integer
minimum: 1
maximum: 65535
default: 5432
database:
description: Name of the database the application uses.
schema:
type: string
username:
description: Role the application connects as.
schema:
type: string
password:
description: Password of the application role.
schema:
type: string
sensitive: true
outputs:
host:
description: Hostname of the managed database server, for a client to connect to.
schema:
type: string
presentationHint: HOSTNAME
from:
input: host
port:
description: Port the managed database server listens on.
schema:
type: integer
from:
input: port
database:
description: Name of the database the application uses.
schema:
type: string
from:
input: database
username:
description: Role the application connects as.
schema:
type: string
from:
input: username
password:
description: Password of the application role.
schema:
type: string
sensitive: true
from:
input: password
sslMode:
description: TLS mode a client uses; the provider accepts only verified connections.
schema:
type: string
from:
value: verify-full
specVersion: v1
kind: COMPONENT
metadata:
revision: 1
description: Background worker that answers queued requests with a language model it reaches through three ordinary inputs.
spec:
type: WORKER
workload:
source:
image: ghcr.io/musher-dev/assistant-worker:2.3.0
contract:
inputs:
llmBaseURL:
description: Base URL of the language-model API.
schema:
type: string
presentationHint: ENDPOINT_URL
target:
envVarKey: OPENAI_BASE_URL
llmAPIKey:
description: Credential presented to the language-model API.
schema:
type: string
sensitive: true
target:
envVarKey: OPENAI_API_KEY
llmModel:
description: Model the language-model API answers with.
schema:
type: string
target:
envVarKey: OPENAI_MODEL
outputs: {}
specVersion: v1
kind: COMPONENT
metadata:
revision: 1
description: Static web server with one HTTP endpoint.
spec:
type: SERVICE
workload:
source:
image: nginx:1.29.4-alpine
endpoints:
web:
targetPort: 8080
protocol: HTTP
specVersion: v1
kind: COMPONENT
metadata:
revision: 1
description: RabbitMQ message broker with an AMQP listener, a management console and HTTP API, and a Prometheus metrics endpoint.
spec:
type: SERVICE
workload:
source:
image: rabbitmq:4.1.4-management-alpine
endpoints:
amqp:
targetPort: 5672
protocol: TCP
console:
targetPort: 15672
protocol: HTTP
metrics:
targetPort: 15692
protocol: HTTP
health:
readiness:
http:
endpoint: metrics
path: /metrics
volumes:
data:
mountPath: /var/lib/rabbitmq
minSizeGiB: 5
contract:
inputs:
username:
description: Name of the user the broker creates on first start.
schema:
type: string
minLength: 1
default: app
target:
envVarKey: RABBITMQ_DEFAULT_USER
password:
description: Password of the user the broker creates on first start.
schema:
type: string
minLength: 12
sensitive: true
target:
envVarKey: RABBITMQ_DEFAULT_PASS
outputs:
consoleURL:
description: Public URL of the management console, for an operator to sign in at.
schema:
type: string
presentationHint: ENDPOINT_URL
from:
endpoint: console
property: publicURL
apiURL:
description: Base URL of the management HTTP API, for sibling nodes that declare queues.
schema:
type: string
presentationHint: ENDPOINT_URL
from:
template: "http://${{ self.endpoints.console.privateAddress }}/api"
wireAddress:
description: Internal host and port of the AMQP listener, for sibling nodes that publish or consume.
schema:
type: string
from:
endpoint: amqp
property: privateAddress
username:
description: Name of the broker user a client authenticates as.
schema:
type: string
minLength: 1
from:
input: username
password:
description: Password of the broker user a client authenticates as.
schema:
type: string
minLength: 12
sensitive: true
from:
input: password
specVersion: v1
kind: COMPONENT
metadata:
revision: 1
description: Language-model API reached through an organization connection, handing its endpoint, credential and model to the nodes that call it.
spec:
type: EXTERNAL
contract:
inputs:
llm:
description: Language-model connection this node stands for.
connection:
protocol: OPENAI_CHAT_COMPLETIONS
capabilities:
- STREAMING
- TOOL_CALLS
outputs:
baseURL:
description: Base URL of the language-model API.
schema:
type: string
presentationHint: ENDPOINT_URL
from:
input: llm
member: baseURL
apiKey:
description: Credential the language-model API accepts.
schema:
type: string
sensitive: true
from:
input: llm
member: apiKey
model:
description: Model the language-model API answers with.
schema:
type: string
from:
input: llm
member: model
specVersion: v1
kind: COMPONENT
metadata:
revision: 1
description: Queue consumer with a private health endpoint the platform probes; it serves no traffic of its own.
spec:
type: WORKER
workload:
source:
image: ghcr.io/musher-dev/worker:1.4.0
command:
- /bin/consume
- --queue
- default
endpoints:
health:
targetPort: 8081
protocol: HTTP
health:
readiness:
http:
endpoint: health
path: /readyz
liveness:
http:
endpoint: health
path: /healthz
failureThreshold: 5
contract:
inputs:
queueURL:
description: Address of the queue the worker consumes.
schema:
type: string
presentationHint: CONNECTION_STRING
sensitive: true
target:
envVarKey: QUEUE_URL
outputs: {}
specVersion: v1
kind: COMPONENT
metadata:
revision: 1
description: Nightly database backup that runs at 03:00 UTC and writes to a persistent volume.
spec:
type: JOB
workload:
source:
image: ghcr.io/musher-dev/backup:1.0.2
command:
- /bin/backup
- --verify
schedule:
cron: "0 3 * * *"
volumes:
archive:
mountPath: /var/backups
minSizeGiB: 20
contract:
inputs:
databaseURL:
description: Connection URL of the database to back up.
schema:
type: string
presentationHint: CONNECTION_STRING
sensitive: true
target:
envVarKey: DATABASE_URL
outputs: {}
specVersion: v1
kind: COMPONENT
metadata:
revision: 1
description: PostgreSQL database with a single persistent data volume.
spec:
type: SERVICE
workload:
source:
image: postgres:17.10-alpine
endpoints:
primary:
targetPort: 5432
protocol: TCP
volumes:
data:
mountPath: /var/lib/postgresql/data
minSizeGiB: 10
contract:
inputs:
postgresPassword:
description: Password the database superuser is created with.
schema:
type: string
required: true
target:
envVarKey: POSTGRES_PASSWORD
sensitive: true
databaseName:
description: Name of the database created on first start.
schema:
type: string
default: app
target:
envVarKey: POSTGRES_DB
dataDirectory:
description: Directory inside the data volume PostgreSQL keeps its files in.
schema:
type: string
default: /var/lib/postgresql/data/pgdata
target:
envVarKey: PGDATA
outputs:
address:
description: Internal host and port clients reach the database at.
schema:
type: string
from:
endpoint: primary
property: privateAddress