Adding non-root user to dockerfiles of litmus portal (#2380)

Signed-off-by: Raj Babu Das <raj.das@mayadata.io>

litmus-portal/authentication/Dockerfile

@@ -12,6 +12,10 @@ FROM alpine:latest
 LABEL maintainer="LitmusChaos"
 
 COPY --from=builder /output/server /
+
+RUN addgroup -S litmus && adduser -S -G litmus 1001 
+USER 1001
+
 CMD ["./server"]
 
 EXPOSE 3000

litmus-portal/cluster-agents/subscriber/build/Dockerfile

@@ -14,4 +14,8 @@ FROM alpine:3.12.0
 LABEL maintainer="LitmusChaos"
 
 COPY --from=builder /output/subscriber /
+
+RUN addgroup -S litmus && adduser -S -G litmus 1001 
+USER 1001
+
 CMD ["./subscriber"]

litmus-portal/frontend/Dockerfile

@@ -23,7 +23,7 @@ COPY . ./
 RUN npm run build
 
 # Stage 2: the production environment
-FROM nginx:alpine
+FROM nginxinc/nginx-unprivileged:1.18-alpine
 RUN rm /etc/nginx/conf.d/default.conf
 COPY nginx/nginx.conf /etc/nginx/conf.d/default.conf
 COPY  --from=react-build /frontend/build /usr/share/nginx/html

litmus-portal/frontend/Dockerfile-Unprivileged

@@ -1,36 +0,0 @@
-# Docker Image which is used as foundation to create
-# a custom Docker Image with this Dockerfile
-FROM node:12.18.0 as react-build
-
-# Add Maintainer Info
-LABEL maintainer="LitmusChaos"
-
-# A directory within the virtualized Docker environment
-# Becomes more relevant when using Docker Compose later
-WORKDIR /frontend
-
-# Copies package.json and package-lock.json to Docker environment
-COPY package.json ./
-COPY package-lock.json ./
-
-# Installs all node packages except Cypress
-RUN CYPRESS_INSTALL_BINARY=0 npm install
-
-# Copies everything over to Docker environment
-COPY . ./
-
-# Finally runs the application
-RUN npm run build
-
-# Stage 2: the production environment
-FROM nginxinc/nginx-unprivileged
-
-# Add Maintainer Info
-LABEL maintainer="LitmusChaos"
-
-RUN rm /etc/nginx/conf.d/default.conf
-COPY nginx/nginx.conf /etc/nginx/conf.d/default.conf
-COPY  --from=react-build /frontend/build /usr/share/nginx/html
-
-EXPOSE 8080
-CMD ["nginx", "-g", "daemon off;"]

litmus-portal/graphql-server/build/Dockerfile

@@ -14,6 +14,10 @@ LABEL maintainer="LitmusChaos"
 
 COPY --from=builder /output/server /
 COPY --from=builder /gql-server/manifests/. /manifests
+
+RUN addgroup -S litmus && adduser -S -G litmus 1001 
+USER 1001
+
 CMD ["./server"]
 
 EXPOSE 8080