Question

转到代码：

package main

import (
    "fmt"
    "time"
)

func main() {
    var local,_ = time.LoadLocation("Asia/Shanghai")
    fmt.Println(time.Now())
    fmt.Println(time.Now().In(local))
}

Dockerfile：

FROM scratch
COPY ./main /main
CMD [ "/main" ]

build.sh：

rm -rf main
CGO_ENABLED=0 GOOS=linux GOARCH=amd64 go build -o main  . 
docker build -t hello-go .
docker run hello-go

所有文件都在一个名为hello-go的文件夹中。当我在我的osx中运行Go代码时。有用。

➜  hello-go go run main.go
2017-12-13 21:50:53.482933 +0800 CST m=+0.000350077
2017-12-13 21:50:53.483007 +0800 CST

当我构建docker镜像并启动它时。像这样的一个错误：

➜  hello-go ./build.sh
Sending build context to Docker daemon  1.937MB
Step 1/3 : FROM scratch
 --->
Step 2/3 : COPY ./main /main
 ---> 80da783f6c5d
Step 3/3 : CMD /main
 ---> Running in 85cb022b3ce2
 ---> 485ddd3a08dd
Removing intermediate container 85cb022b3ce2
Successfully built 485ddd3a08dd
Successfully tagged hello-go:latest
2017-12-13 13:52:59.861173734 +0000 UTC m=+0.000252335
panic: time: missing Location in call to Time.In

goroutine 1 [running]:
time.Time.In(0xbe846a0ef355744e, 0x4d607, 0x539b80, 0x0, 0x0, 0x0, 0xc420037f70)
        /usr/local/go/src/time/time.go:1073 +0xc0
main.main()
        /Users/liujichun/Desktop/workspace/docker/hello-go/main.go:11 +0xee
➜  hello-go

我知道刮痕图片是空的。我该怎么做才能做到。

Answer 1

使用此库https://godoc.org/4d63.com/tz

他们的示例（请参见TaskSchedule: Type: AWS::Events::Rule DeletionPolicy: Delete Properties: Description: > Run every two hours. ScheduleExpression: !Ref TaskRate State: ENABLED Targets: - Id: ECSTarget Arn: !GetAtt ecsCluster.Arn EcsParameters: TaskCount: 1 TaskDefinitionArn: !Ref TaskDefinitionDaily）

tz.LoadLocation

Answer 2

Docker从Alphine

RUN apk --no-cache add tzdata

查看答案： https://stackoverflow.com/a/62159987/4143613

Answer 3

我认为解决此问题的正确方法是按照库的要求导入 tzdata。您可以使用 TZ 环境变量。

我在 GitHub here

上找到的 Dockerfile 中指出了解决方案

总结一切：

FROM golang:alpine AS build
RUN apk update && apk add ca-certificates && apk add tzdata
WORKDIR /app
ADD . .
RUN CGO_ENABLED=0 GOOS=linux go build -o myapp

FROM scratch AS final
COPY --from=build /usr/share/zoneinfo /usr/share/zoneinfo
COPY --from=build /etc/ssl/certs/ca-certificates.crt /etc/ssl/certs/
COPY --from=build /app/myapp /

ENV TZ Australia/Sydney
ENTRYPOINT ["/myapp"]

Answer 4

从 Go 1.15 开始，time/tzdata 可用，只需在主包中导入包即可。

参考： https://golang.org/pkg/time/tzdata/

Go的时间在docker镜像下无法正常工作

4 个答案: