nginx-golang-mysql: add dev envs support (#274)

* Add Docker Desktop Development Environments config
* Use nginx image with read-only bind mount instead of building a
  custom image
* Upgrade Go dependencies

Co-authored-by: Guillaume Lours <guillaume@lours.me>
Signed-off-by: Milas Bowman <milas.bowman@docker.com>
master
Milas Bowman 2 years ago committed by GitHub
parent 111c55d56b
commit f3293008b0
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@ -0,0 +1,50 @@
services:
backend:
build:
context: backend
target: dev-envs
volumes:
- /var/run/docker.sock:/var/run/docker.sock
secrets:
- db-password
depends_on:
db:
condition: service_healthy
db:
image: mariadb:10-focal
command: '--default-authentication-plugin=mysql_native_password'
restart: always
healthcheck:
test: ["CMD", "mysqladmin", "ping", "-h", "127.0.0.1", "--silent"]
interval: 3s
retries: 5
start_period: 30s
secrets:
- db-password
volumes:
- db-data:/var/lib/mysql
environment:
- MYSQL_DATABASE=example
- MYSQL_ROOT_PASSWORD_FILE=/run/secrets/db-password
expose:
- 3306
proxy:
image: nginx
volumes:
- type: bind
source: ./proxy/nginx.conf
target: /etc/nginx/conf.d/default.conf
read_only: true
ports:
- 80:80
depends_on:
- backend
volumes:
db-data:
secrets:
db-password:
file: db/password.txt

@ -1,5 +1,5 @@
## Compose sample application
### Go server with an Nginx proxy and a MySQL database
### Go server with an Nginx proxy and a MariaDB/MySQL database
Project structure:
```
@ -7,30 +7,37 @@ Project structure:
├── backend
│   ├── Dockerfile
│   ├── go.mod
│   ├── go.sum
│   └── main.go
├── db
│   └── password.txt
├── compose.yaml
├── proxy
│   ├── conf
│   └── Dockerfile
│   └── nginx.conf
├── compose.yaml
└── README.md
```
[_compose.yaml_](compose.yaml)
```
```yaml
services:
backend:
build: backend
build:
context: backend
target: builder
...
db:
# We use a mariadb image which supports both amd64 & arm64 architecture
image: mariadb:10.6.4-focal
image: mariadb:10-focal
# If you really want to use MySQL, uncomment the following line
#image: mysql:8.0.27
#image: mysql:8
...
proxy:
build: proxy
image: nginx
volumes:
- type: bind
source: ./proxy/nginx.conf
target: /etc/nginx/conf.d/default.conf
read_only: true
ports:
- 80:80
...
@ -42,11 +49,11 @@ Make sure port 80 on the host is not already being in use.
> **_INFO_**
> For compatibility purpose between `AMD64` and `ARM64` architecture, we use a MariaDB as database instead of MySQL.
> You still can use the MySQL image by uncommenting the following line in the Compose file
> `#image: mysql:8.0.27`
> `#image: mysql:8`
## Deploy with docker compose
```
```shell
$ docker compose up -d
Creating network "nginx-golang-mysql_default" with the default driver
Building backend
@ -64,24 +71,33 @@ Creating nginx-golang-mysql_proxy_1 ... done
## Expected result
Listing containers must show three containers running and the port mapping as below:
```
$ docker ps
CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
8906b14c5ad1 nginx-golang-mysql_proxy "nginx -g 'daemon of…" 2 minutes ago Up 2 minutes 0.0.0.0:80->80/tcp nginx-golang-mysq
l_proxy_1
13e0e0a7715a nginx-golang-mysql_backend "/server" 2 minutes ago Up 2 minutes 8000/tcp nginx-golang-mysq
l_backend_1
ca8c5975d205 mysql:5.7 "docker-entrypoint.s…" 2 minutes ago Up 2 minutes 3306/tcp, 33060/tcp nginx-golang-mysq
```shell
$ docker compose ps
NAME COMMAND SERVICE STATUS PORTS
nginx-golang-mysql-backend-1 "/code/bin/backend" backend running
nginx-golang-mysql-db-1 "docker-entrypoint.s…" db running (healthy) 3306/tcp
nginx-golang-mysql-proxy-1 "/docker-entrypoint.…" proxy running 0.0.0.0:80->80/tcp
l_db_1
```
After the application starts, navigate to `http://localhost:80` in your web browser or run:
```
```shell
$ curl localhost:80
["Blog post #0","Blog post #1","Blog post #2","Blog post #3","Blog post #4"]
```
Stop and remove the containers
```
```shell
$ docker compose down
```
## Use with Docker Development Environments
You can use this sample with the Dev Environments feature of Docker Desktop.
![Screenshot of creating a Dev Environment in Docker Desktop](../dev-envs.png)
To develop directly on the services inside containers, use the HTTPS Git url of the sample:
```
https://github.com/docker/awesome-compose/tree/master/nginx-golang-mysql
```

@ -1,10 +1,41 @@
FROM golang:1.13-alpine AS build
WORKDIR /go/src/github.com/org/repo
# syntax=docker/dockerfile:1.4
FROM --platform=$BUILDPLATFORM golang:1.18-alpine AS builder
WORKDIR /code
ENV CGO_ENABLED 0
ENV GOPATH /go
ENV GOCACHE /go-build
COPY go.mod go.sum ./
RUN --mount=type=cache,target=/go/pkg/mod/cache \
go mod download
COPY . .
RUN go build -o server .
RUN --mount=type=cache,target=/go/pkg/mod/cache \
--mount=type=cache,target=/go-build \
go build -o bin/backend main.go
CMD ["/code/bin/backend"]
FROM builder AS dev-envs
RUN <<EOF
apk update
apk add git
EOF
RUN <<EOF
addgroup -S docker
adduser -S --shell /bin/bash --ingroup docker vscode
EOF
# install Docker tools (cli, buildx, compose)
COPY --from=gloursdocker/docker / /
CMD ["go", "run", "main.go"]
FROM alpine:3.12
EXPOSE 8000
COPY --from=build /go/src/github.com/org/repo/server /server
CMD ["/server"]
FROM scratch
COPY --from=builder /code/bin/backend /usr/local/bin/backend
CMD ["/usr/local/bin/backend"]

@ -1,10 +1,11 @@
module github.com/org/repo
module github.com/docker/awesome-compose/nginx-golang-mysql/backend
go 1.13
go 1.18
require (
github.com/go-sql-driver/mysql v1.3.0
github.com/gorilla/context v1.1.1
github.com/gorilla/handlers v1.3.0
github.com/gorilla/mux v1.6.2
github.com/go-sql-driver/mysql v1.6.0
github.com/gorilla/handlers v1.5.1
github.com/gorilla/mux v1.8.0
)
require github.com/felixge/httpsnoop v1.0.1 // indirect

@ -0,0 +1,8 @@
github.com/felixge/httpsnoop v1.0.1 h1:lvB5Jl89CsZtGIWuTcDM1E/vkVs49/Ml7JJe07l8SPQ=
github.com/felixge/httpsnoop v1.0.1/go.mod h1:m8KPJKqk1gH5J9DgRY2ASl2lWCfGKXixSwevea8zH2U=
github.com/go-sql-driver/mysql v1.6.0 h1:BCTh4TKNUYmOmMUcQ3IipzF5prigylS7XXjEkfCHuOE=
github.com/go-sql-driver/mysql v1.6.0/go.mod h1:DCzpHaOWr8IXmIStZouvnhqoel9Qv2LBy8hT2VhHyBg=
github.com/gorilla/handlers v1.5.1 h1:9lRY6j8DEeeBT10CvO9hGW0gmky0BprnvDI5vfhUHH4=
github.com/gorilla/handlers v1.5.1/go.mod h1:t8XrUpc4KVXb7HGyJ4/cEnwQiaxrX/hz1Zv/4g96P1Q=
github.com/gorilla/mux v1.8.0 h1:i40aqfkR1h2SlN9hojwV5ZA91wcXFOvkdNIeFDP5koI=
github.com/gorilla/mux v1.8.0/go.mod h1:DVbg23sWSpFRCP0SfiEN6jmj59UnW/n46BH5rLB71So=

@ -1,20 +1,23 @@
services:
backend:
build: backend
build:
context: backend
target: builder
secrets:
- db-password
depends_on:
db:
condition: service_healthy
db:
# We use a mariadb image which supports both amd64 & arm64 architecture
image: mariadb:10.6.4-focal
image: mariadb:10-focal
# If you really want to use MySQL, uncomment the following line
#image: mysql:8.0.27
#image: mysql:8
command: '--default-authentication-plugin=mysql_native_password'
restart: always
healthcheck:
test: ["CMD", "mysqladmin", "ping", "-h", "127.0.0.1", "--silent"]
test: ['CMD-SHELL', 'mysqladmin ping -h 127.0.0.1 --password="$$(cat /run/secrets/db-password)" --silent']
interval: 3s
retries: 5
start_period: 30s
@ -27,14 +30,22 @@ services:
- MYSQL_ROOT_PASSWORD_FILE=/run/secrets/db-password
expose:
- 3306
proxy:
build: proxy
image: nginx
volumes:
- type: bind
source: ./proxy/nginx.conf
target: /etc/nginx/conf.d/default.conf
read_only: true
ports:
- 80:80
depends_on:
- backend
volumes:
db-data:
secrets:
db-password:
file: db/password.txt

@ -1,2 +0,0 @@
FROM nginx:1.13-alpine
COPY conf /etc/nginx/conf.d/default.conf

@ -3,6 +3,6 @@ server {
server_name localhost;
location / {
proxy_pass http://backend:8000;
proxy_http_version 1.1;
}
}
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