Remix & Cloud Run

Cloud Run & Remix

So you want to set up remix in cloud run huh? It's pretty simple but i'm going to assume you can figure out most of the GCP UI on your own.

Cloud Run:
Step 1: Create a new service and take note of the service ID
Step 2: Allow all traffic in the /triggers tab

Cloud Build:
Step 1: Set up a Cloud Build trigger on your repo
Step 2: Point the configuration to "cloud build configuration file" at the root of your project
Step 3: Add the following to the substitution variables (so you can keep it safe):
  _SERVICE_NAME: your service ID from Cloud run above
  _DEPLOY_REGION: where you want it deployed to

Repo:
Step 1: Add the cloudbuild.yaml to your project root
Step 2: Add the Dockerfile to your project root
  Note: The Dockerfile will change depending on which Remix version you are using
        so try to understand what it does so you can make project specific changes
Step 3: Update your firebase.json to rewrite all routes to the cloud build service
Step 4: Push up the changes and watch to see cloud build successfully ran.

cloudbuild.yaml

steps:
  # Build the container image
  - name: "gcr.io/cloud-builders/docker"
    args:
      [
        "build",
        "-t",
        "gcr.io/$PROJECT_ID/$_SERVICE_NAME:$COMMIT_SHA",
        "."
      ]
  - name: 'gcr.io/cloud-builders/docker'
    args: ['push', 'gcr.io/$PROJECT_ID/$_SERVICE_NAME:$COMMIT_SHA']
  - name: 'gcr.io/google.com/cloudsdktool/cloud-sdk'
    entrypoint: gcloud
    args: ['run', 'deploy', '$_SERVICE_NAME', '--image', 'gcr.io/$PROJECT_ID/$_SERVICE_NAME:$COMMIT_SHA', '--region', '$_DEPLOY_REGION']
images: [
  "gcr.io/$PROJECT_ID/$_SERVICE_NAME:$COMMIT_SHA"
]

Dockerfile

# # base node image
FROM node:16-bullseye-slim as base

# # Build the dev image
FROM base as build
RUN mkdir /app/
WORKDIR /app/
COPY . /app
RUN npm install
RUN npm run build

# # Get the production modules
FROM base as production-deps
RUN mkdir /app/
WORKDIR /app/
COPY --from=build /app/node_modules /app/node_modules
ADD package.json package-lock.json /app/
RUN npm prune --production

# Pull out the build files and do a production install
FROM base
ENV NODE_ENV=production
RUN mkdir /app/
WORKDIR /app/
ADD package.json package-lock.json /app/
COPY --from=build /app/public /app/public
COPY --from=build /app/server /app/server
COPY --from=production-deps /app/node_modules /app/node_modules
CMD ["node", "server/index.js"]

firebase.json

"hosting": [
    {
      "site": "my-site",
      "public": "public",
      "ignore": [
        "firebase.json",
        "**/.*",
        "**/node_modules/**"
      ],
      "rewrites": [
        {
          "source": "**",
          "run": {
            "serviceId": "my-service-id"
          }
        }
      ]
    }
  ],

First go this error (solved by using version 18)

1.637 Error: ️🚨 Oops, Node v16.20.2 detected. Remix requires a Node version greater than 18.                    
1.637     at Object.run (/app/node_modules/@remix-run/dev/dist/cli/run.js:106:11)                               
1.637     at Object.<anonymous> (/app/node_modules/@remix-run/dev/dist/cli.js:16:11)                            
1.637     at Module._compile (node:internal/modules/cjs/loader:1198:14)                                         
1.637     at Object.Module._extensions..js (node:internal/modules/cjs/loader:1252:10)                           
1.637     at Module.load (node:internal/modules/cjs/loader:1076:32)                                            
1.637     at Function.Module._load (node:internal/modules/cjs/loader:911:12)                                    
1.637     at Function.executeUserEntryPoint [as runMain] (node:internal/modules/run_main:81:12)                
1.637     at node:internal/main/run_main_module:22:47  

I fixed this by using FROM node:18-bullseye-slim as base

But then afterwards I hit this error:

Dockerfile:27                                           
--------------------                                    
  25 |     ADD package.json package-lock.json /app/     
  26 |     COPY --from=build /app/public /app/public
  27 | >>> COPY --from=build /app/server /app/server
  28 |     COPY --from=production-deps /app/node_modules /app/node_modules
  29 |     CMD ["node", "server/index.js"]
--------------------   
ERROR: failed to solve: failed to compute cache key: failed to calculate checksum of ref FGXF:Q62Y:M7QI:W4P7:IXL
J:OCF2:W3ON:UOIC:QGZX:TV7E:AKES:UGCX::hd2muhin3q1pe47ocigqvh22k: "/app/server": not found

The 2nd issue is fixed by using npm run instead. Here is the full working Dockerfile:

# # base node image
FROM node:18-bullseye-slim as base

# # Build the dev image
FROM base as build
RUN mkdir /app/
WORKDIR /app/
COPY . /app
RUN npm install
RUN npm run build

# # Get the production modules
FROM base as production-deps
RUN mkdir /app/
WORKDIR /app/
COPY --from=build /app/node_modules /app/node_modules
ADD package.json package-lock.json /app/
RUN npm prune --production

# Pull out the build files and do a production install
FROM base
ENV NODE_ENV=production
ENV HOST=0.0.0.0
ENV PORT=8080
RUN mkdir /app/
WORKDIR /app/
ADD package.json package-lock.json /app/
COPY --from=build /app/build /app/build
COPY --from=build /app/public/build /app/public/build
COPY --from=production-deps /app/node_modules /app/node_modules
CMD ["npm", "start"]
EXPOSE $PORT

You might be running a different version of remix but its probably similar I have a server.js file
so my dockerfile looked like
COPY --from=build /app/public /app/public COPY --from=build /app/build /app/build COPY --from=build /app/server.js /app/server.js