CODEWITHSUNDEEP
ruby-on-railsrubyyamlrakeexchange-server
RAJEEV RANJAN SINGH
RAJEEV RANJAN SINGH

Reputation: 21

yaml.parser.ParserError: expected '<document start>', but found '<block mapping start>'

I am using the command rake service:all for the UI installation. But I find this error and struck for hours.

I have already checked the yaml format from yamllint.com but I could not able to find my error.

frontend.yaml:

../config/frontend/env.js:/usr/share/nginx/html/public/env.jsversion: "3.6"

services:
    frontend:
      image: "rubykube/mikroapp:0.1.5"
      volumes: 
        - ../config/frontend/env.js:/usr/share/nginx/html/public/env.js
    labels:
      traefik.enable: true
      traefik.frontend.rule: "PathPrefix:/;Host:www.dexfinpro.com"
      traefik.port: 3000

  tower:
    image: "rubykube/tower:0.1.8"
    volumes:
      - ../config/frontend/tower.js:/home/app/env.js
    labels:
      traefik.enable: true
      traefik.frontend.rule: "PathPrefix:/tower;Host:www.dexfinpro.com"
      traefik.port: 8080

ERROR:

yaml.parser.ParserError: expected '<document start>', but found '<block mapping start>' in "./compose/frontend.yaml", line 3, column 1 rake aborted! Command failed with status (1): [docker-compose up -d proxy...]

I found this error.

Upvotes: 1

Views: 9822

Answers (1)

Deepak Mahakale
Deepak Mahakale

Reputation: 23661

The content in your file is not valid. The reason is you have indented the frontent block by 2 more spaces.

You can always check if the yaml is valid or not here - http://www.yamllint.com/

services:
  frontend:
    image: "rubykube/mikroapp:0.1.5"
    volumes: 
      - ../config/frontend/env.js:/usr/share/nginx/html/public/env.js
  labels:
    traefik.enable: true
    traefik.frontend.rule: "PathPrefix:/;Host:www.dexfinpro.com"
    traefik.port: 3000

  tower:
    image: "rubykube/tower:0.1.8"
    volumes:
      - ../config/frontend/tower.js:/home/app/env.js
    labels:
      traefik.enable: true
      traefik.frontend.rule: "PathPrefix:/tower;Host:www.dexfinpro.com"
      traefik.port: 8080

Note: I am not sure if you wan't the block with tower key at top level or inside services so make change accordingly

Upvotes: 1

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