Having trouble solving a Docker issue that I can't seem to figure out from other resources or documentation. As a beginner with Docker, I'm seeking help here. My current project involves Next.js and Docker for building the app. Following the example documentation provided by Next.js works when my Dockerfile is in the project root. However, I want to place it in a folder named etc and build the app from there. This setup is causing issues as Docker is unable to locate the files being copied to the working directory, resulting in the error below.
Directory Structure
.
├── etc
│ └── Dockerfile
├── package.json
└── yarn.lock
Build Command
docker build etc/
Error Message
failed to compute cache key: "/yarn.lock" not found: not foundDockerfile Configuration
FROM node:16-alpine AS deps
# Check https://github.com/nodejs/docker-node/tree/b4117f9333da4138b03a546ec926ef50a31506c3#nodealpine to understand why libc6-compat might be needed.
RUN apk add --no-cache libc6-compat
WORKDIR /app
COPY package.json yarn.lock ./
RUN yarn install --frozen-lockfile
I've attempted various approaches like modifying file paths without success. The Docker documentation suggests using the `-f` flag, but trying to run `docker build -f etc/Dockerfile` results in an error stating `"docker build" requires exactly 1 argument.` Is this information outdated? My main query is how to construct the app with Docker when the Dockerfile resides in a child folder like etc/.