Healthcheck Instruction Missing

• Query id: b03a748a-542d-44f4-bb86-9199ab4fd2d5
• Query name: Healthcheck Instruction Missing
• Platform: Dockerfile
• Severity: Low
• Category: Insecure Configurations
• URL: Github

Description

Ensure that HEALTHCHECK is being used. The HEALTHCHECK instruction tells Docker how to test a container to check that it is still working
Documentation

Code samples

Code samples with security vulnerabilities

Positive test num. 1 - dockerfile file

FROM node:alpine
WORKDIR /usr/src/app
COPY package*.json ./
RUN npm install
COPY . .
EXPOSE 3000
CMD ["node","app.js"]

Positive test num. 2 - dockerfile file

FROM golang:1.16 AS builder
WORKDIR /go/src/github.com/foo/href-counter/
RUN go get -d -v golang.org/x/net/html  
COPY app.go    ./
RUN CGO_ENABLED=0 GOOS=linux go build -a -installsuffix cgo -o app .

FROM alpine:latest  
RUN apk --no-cache add ca-certificates
WORKDIR /root/
COPY --from=builder /go/src/github.com/foo/href-counter/app ./
CMD ["./app"]
RUN useradd -ms /bin/bash patrick

USER patrick

Code samples without security vulnerabilities

Negative test num. 1 - dockerfile file

FROM node:alpine
WORKDIR /usr/src/app
COPY package*.json ./
RUN npm install
COPY . .
EXPOSE 3000
HEALTHCHECK CMD curl --fail http://localhost:3000 || exit 1 
CMD ["node","app.js"]

Negative test num. 2 - dockerfile file

FROM golang:1.16 AS builder
WORKDIR /go/src/github.com/foo/href-counter/
RUN go get -d -v golang.org/x/net/html  
COPY app.go    ./
RUN CGO_ENABLED=0 GOOS=linux go build -a -installsuffix cgo -o app .

FROM alpine:latest  
RUN apk --no-cache add ca-certificates
WORKDIR /root/
COPY --from=builder /go/src/github.com/foo/href-counter/app ./
CMD ["./app"]
RUN useradd -ms /bin/bash patrick

USER patrick
HEALTHCHECK CMD curl --fail http://localhost:3000 || exit 1