github-status

This application is something I'm using to wrap my head around golang. This simply sets up a few routes and tells us if Github is available or not.

Building the Application

You can build the application quickly by running the following.

make build

Yep. That's it. You should see the following output:

docker build -t github-status:latest .
Sending build context to Docker daemon  243.7kB
Step 1/16 : FROM golang:alpine as builder
 ---> ccda0e5ccbfc
Step 2/16 : RUN apk update && apk add git && apk add ca-certificates
 ---> Using cache
 ---> 4cbc84ad9250
Step 3/16 : RUN adduser -D -g '' githubstatususer
 ---> Using cache
 ---> 285441a29844
Step 4/16 : COPY . $GOPATH/src/github-status/
 ---> adb249c25fdc
Step 5/16 : WORKDIR $GOPATH/src/github-status/
 ---> Running in 84146b64ddf8
Removing intermediate container 84146b64ddf8
 ---> f4292452a3df
Step 6/16 : ENV CGO_ENABLED 0
 ---> Running in 018449773e71
Removing intermediate container 018449773e71
 ---> bbea7ada25cd
Step 7/16 : ENV GOOS linux
 ---> Running in fbbd1e57cc75
Removing intermediate container fbbd1e57cc75
 ---> a83d7acda0d9
Step 8/16 : ENV GOARCH amd64
 ---> Running in 1c3a143aaa5f
Removing intermediate container 1c3a143aaa5f
 ---> e6e89fb9e93f
Step 9/16 : RUN go test -v
 ---> Running in 41404e0b10cf
go: downloading github.com/gorilla/mux v1.6.2
go: downloading github.com/stretchr/testify v1.2.2
go: downloading github.com/pmezard/go-difflib v1.0.0
go: downloading github.com/davecgh/go-spew v1.1.1
=== RUN   TestHealthCheckHandler
--- PASS: TestHealthCheckHandler (0.00s)
=== RUN   TestGithubStatusHandler
2020/04/26 17:05:07 GET /api/last-message.json
2020/04/26 17:05:07 Closing body of request
2020/04/26 17:05:07 Unmarshaling last-message.json
2020/04/26 17:05:07 Github returned an outage state.
--- PASS: TestGithubStatusHandler (1.19s)
PASS
ok      github.com/tonyganga/github-status      1.190s
Removing intermediate container 41404e0b10cf
 ---> 23973d40ac28
Step 10/16 : RUN go build -a -installsuffix cgo -o /go/bin/github-status
 ---> Running in e939335544c0
Removing intermediate container e939335544c0
 ---> 9d894ed491a6
Step 11/16 : FROM scratch
 ---> 
Step 12/16 : COPY --from=builder /etc/ssl/certs/ca-certificates.crt /etc/ssl/certs/
 ---> Using cache
 ---> 97433d6c14b4
Step 13/16 : COPY --from=builder /etc/passwd /etc/passwd
 ---> Using cache
 ---> 11be22532be1
Step 14/16 : COPY --from=builder /go/bin/github-status /go/bin/github-status
 ---> Using cache
 ---> f9727be7f6da
Step 15/16 : USER githubstatususer
 ---> Using cache
 ---> 817e4c2fec22
Step 16/16 : ENTRYPOINT ["/go/bin/github-status"]
 ---> Using cache
 ---> d0d1a1012c02
Successfully built d0d1a1012c02
Successfully tagged github-status:latest

You can then view the image by running the following.

docker images

REPOSITORY          TAG                 IMAGE ID            CREATED             SIZE
github-status       latest              c9f99f149d01        2 minutes ago       7.48MB
<none>              <none>              acedf86099f0        2 minutes ago       356MB

You can then run the application by doing the following.

docker run -d -p 8000:8000 github-status

You should then be able to access the api, try a simple curl.

$ curl 172.17.0.2:8000/status
* TCP_NODELAY set
* Connected to 172.17.0.2 (172.17.0.2) port 8000 (#0)
> GET /status HTTP/1.1
> Host: 172.17.0.2:8000
> User-Agent: curl/7.58.0
> Accept: */*
> 
< HTTP/1.1 200 OK
< Content-Type: application/json
< Date: Thu, 18 Oct 2018 02:58:54 GMT
< Content-Length: 110
< 
* Connection #0 to host 172.17.0.2 left intact

{"status":"good","created_on":"2018-10-08T22:39:11Z","body":"Everything operating normally.","Available":true}%