Step1: I have created a local docker image of one NodeJS app. Here is the dockerfile for this app -
FROM node:8
# Create app directory
WORKDIR /usr/src/app
# Install app dependencies
# A wildcard is used to ensure both package.json AND package-lock.json are copied
# where available (npm@5+)
COPY package*.json ./
RUN npm install
# If you are building your code for production
# RUN npm ci --only=production
# Bundle app source
COPY . .
#EXPOSE 8080
CMD [ "npm", "start" ]
**Step 2:**Then I built a docker image for this Node app. Here is the build command output -
C:\Users\shibathethinker\Documents\GitHub\NodeProjects\API_Proxy_ABN>docker build -t api-proxy .
Sending build context to Docker daemon 8.637MB
Step 1/6 : FROM node:8
---> 0bf36d7ccc1e
Step 2/6 : WORKDIR /usr/src/app
---> Running in 7187d65639f1
Removing intermediate container 7187d65639f1
---> 0e34dc93439c
Step 3/6 : COPY package*.json ./
---> 47c0d0ca8c77
Step 4/6 : RUN npm install
---> Running in d7e5163371df
npm WARN [email protected] No repository field.
added 98 packages from 91 contributors and audited 194 packages in 8.598s
found 0 vulnerabilities
Removing intermediate container d7e5163371df
---> 72da705ae792
Step 5/6 : COPY . .
---> 0293df6aa27d
Step 6/6 : CMD [ "npm", "start" ]
---> Running in 251e98c0a0ae
Removing intermediate container 251e98c0a0ae
---> a92d8a95b8cd
Successfully built a92d8a95b8cd
Successfully tagged api-proxy:latest
SECURITY WARNING: You are building a Docker image from Windows against a non-Windows Docker host. All files and directories added to build context will have '-rwxr-xr-x' permissions. It is recommended to double check and reset permissions for sensitive files and directories.
**Step 3:**Then, I wanted to use this docker image in another 'React' app. Here is the Dockerfile of the app -
FROM api-proxy:latest
WORKDIR /app
RUN npm install
CMD [ "npm", "start" ]
# stage: 2 — the production environment
FROM nginx:alpine
#COPY —from=react-build /app/build /usr/share/nginx/html
#COPY nginx.conf /etc/nginx/conf.d/default.conf
COPY /build /usr/share/nginx/html
EXPOSE 80
CMD ["nginx", "-g", "daemon off;"]
Step4: Now I built and ran this docker image generated on step 3.
Question:
It looks like the node app is not running on the newly created docker container. If I 'ssh' into the docker container I can not see any node server running there. I also could not find the WORKDIR (/usr/src/app) created in the step1 in this container.
What I am doing wrong? Please let me know if I can clarify further.
