Father Scott

golang을 최소 설치를 했더니 귀찮다.

FROM golang:alpine

WORKDIR /app

COPY . ./

RUN go mod download
RUN go mod tidy
RUN go build -o main .

# TimeZone 설정
RUN apk --no-cache add tzdata && \
    cp /usr/share/zoneinfo/Asia/Seoul /etc/localtime && \
    echo "Asia/Seoul" > /etc/timezone \
    apk del tzdata

CMD ["./main", "1"]

FROM mcr.microsoft.com/dotnet/sdk:7.0 AS build-env
WORKDIR /App

# Copy everything
COPY . ./
# Restore as distinct layers
RUN dotnet restore
# Build and publish a release
RUN dotnet publish -c Release -o out


# Build runtime image
FROM mcr.microsoft.com/dotnet/aspnet:7.0
WORKDIR /App
COPY --from=build-env /App/out .

# TimeZone 설정
ENV TZ Asia/Seoul
RUN ln -snf /usr/share/zoneinfo/$TZ /etc/localtime && echo $TZ > /etc/timezone


ENTRYPOINT ["dotnet", "AnomalyDetection.dll"]

FROM mcr.microsoft.com/dotnet/sdk:7.0 AS build-env
WORKDIR /App

# Copy everything
COPY . ./
# Restore as distinct layers
RUN dotnet restore
# Build and publish a release
RUN dotnet publish -c Release -o out

# Build runtime image
FROM mcr.microsoft.com/dotnet/aspnet:7.0
WORKDIR /App
COPY --from=build-env /App/out .

# TimeZone 설정
ENV TZ Asia/Seoul
RUN ln -snf /usr/share/zoneinfo/$TZ /etc/localtime && echo $TZ > /etc/timezone


ENTRYPOINT ["dotnet", "Aru.dll"]

version: '3.3'
services:
  aru_collector:
    image: 'aru_collector'
    volumes:
    - /mnt/d/Data/Aru:/var/pos
    - /mnt/d/ML/Data:/var/data    
    - /mnt/d/data/AruTrigger:/var/trigger    
    environment:
      ENVIRONMENT: linux
    links:
    - "PostgreSQL"
  aru_anomaly_detection:
    image: 'aru_anomaly_detection'
    volumes:
    - /mnt/d/ML/Data:/var/data    
    - /mnt/d/data/AruTrigger:/var/trigger    
    environment:
      ENVIRONMENT: linux
    links:
    - "PostgreSQL"  
  aru:
    image: 'aru'
    volumes:
    - /mnt/d/ML/Data:/var/data    
    - /mnt/d/data/AruTrigger:/var/trigger    
    environment:
      ENVIRONMENT: linux
    network_mode: "host"
  PostgreSQL:
    image: postgres
    environment:
      POSTGRES_PASSWORD: "test"          
    ports:
    - 5432:5432
    volumes:
    - /home/postgreSQL:/var/lib/postgresql/data
    shm_size: 1g

Dockerfile

FROM golang:alpine AS builder
ENV GO111MODULE=on \
    CGO_ENABLED=0 \
    GOOS=linux \
    GOARCH=amd64

WORKDIR /build
COPY go.mod go.sum main.go ./
COPY Conf_Linux.json ./Conf.json
COPY dao ./dao
COPY model ./model
RUN go mod download
RUN go mod tidy
RUN go build -o main .
WORKDIR /dist
RUN cp /build/main .

FROM scratch
COPY --from=builder /dist/main .
ENTRYPOINT ["/main"]

docker no cache build

docker build --no-cache -t aru_collector .

docker root 그룹 추가 및 적용

sudo groupadd docker
sudo usermod -aG docker $USER
newgrp docker

golang으로 작업할 때

공유 자원을 defer로 정리하는 경우가 있는데

이러면 버퍼가 풀 날 수 있다

그럴 때는 걍 2번 닫으면 된다.

    db := e.PostgerSQL.Open()
    defer db.Close()

    accountInfo.Insert(db)
    db.Close()

type PostgerSQL struct {
    ConnectionString string
}

func (s *PostgerSQL) Init(e *EndPoint) {
    s.ConnectionString = fmt.Sprintf("host=%s user=%s password=%s dbname=%s sslmode=disable", e.PostgreSQL.Host, e.PostgreSQL.USER, e.PostgreSQL.PASSWORD, e.PostgreSQL.DATABASE)
}

func (s *PostgerSQL) Open() *sql.DB {
    db, err := sql.Open("postgres", s.ConnectionString)
    if err != nil {
        log.Panic().Stack().Err(err).Msg("Open")
    }
    db.SetMaxOpenConns(200)
    db.SetMaxIdleConns(2)
    return db
}