错误提示：
Get https://res.ddkt365.com/ddktRes/imageRes/wx_headimg/0f1d9e55913c22bcaf7cca9b38048d29.jpeg: x509: certificate signed by unknown authority -> http.Get
panic: runtime error: invalid memory address or nil pointer dereference
是 CA 证书的问题，解决方案就是 拷贝 alpine 镜像中的证书
附上 dockerfile 代码
# 基础镜像是 docker 仓库的 busybox FROM alpine as certs RUN apk update && apk add ca-certificates # 从别的镜像中 copy 证书 FROM busybox COPY --from=certs /etc/ssl/certs /etc/ssl/certs # 作者签名 LABEL author="szliugx@gmail.com" # 工作目录 WORKDIR /root # 添加文件 ADD ./bin/ddkt-poster-go ./ddkt-poster-go ADD ./bin/conf.toml ./conf.toml ADD ./fonts ./fonts # 暴露出端口号 #EXPOSE 8080 # 运行容器执行时的口令 ENTRYPOINT ["./ddkt-poster-go", "-conf", "conf.toml"]
liugx@MacBook-Pro � ~/work/personal/golang/ddkt-poster � � liugx_code_youhua ● � docker build -t ddkt-poster-go . Sending build context to Docker daemon 78.08MB Step 1/10 : FROM alpine as certs latest: Pulling from library/alpine aad63a933944: Pull complete Digest: sha256:b276d875eeed9c7d3f1cfa7edb06b22ed22b14219a7d67c52c56612330348239 Status: Downloaded newer image for alpine:latest ---> a187dde48cd2 Step 2/10 : RUN apk update && apk add ca-certificates ---> Running in 1a290f0b3176 fetch http://dl-cdn.alpinelinux.org/alpine/v3.11/main/x86_64/APKINDEX.tar.gz fetch http://dl-cdn.alpinelinux.org/alpine/v3.11/community/x86_64/APKINDEX.tar.gz v3.11.5-5-gfa48ebadee [http://dl-cdn.alpinelinux.org/alpine/v3.11/main] v3.11.5-1-ge59ae1cbad [http://dl-cdn.alpinelinux.org/alpine/v3.11/community] OK: 11265 distinct packages available (1/1) Installing ca-certificates (20191127-r1) Executing busybox-1.31.1-r9.trigger Executing ca-certificates-20191127-r1.trigger OK: 6 MiB in 15 packages Removing intermediate container 1a290f0b3176 ---> 409d89df1e27 Step 3/10 : FROM busybox ---> 83aa35aa1c79 Step 4/10 : COPY --from=certs /etc/ssl/certs /etc/ssl/certs ---> f3d288b6f60c Step 5/10 : LABEL author="szliugx@gmail.com" ---> Running in 81fa23a198e9 Removing intermediate container 81fa23a198e9 ---> 474ca6db3d19 Step 6/10 : WORKDIR /root ---> Running in 670487d3f2a5 Removing intermediate container 670487d3f2a5 ---> ebbc723821b0 Step 7/10 : ADD ./bin/ddkt-poster-go ./ddkt-poster-go ---> 89d7a0e23eca Step 8/10 : ADD ./bin/conf.toml ./conf.toml ---> 4ba50a3e49f8 Step 9/10 : ADD ./fonts ./fonts ---> 672cb62f608a Step 10/10 : ENTRYPOINT ["./ddkt-poster-go", "-conf", "conf.toml"] ---> Running in 86afb270dab0 Removing intermediate container 86afb270dab0 ---> da2ec7a93580 Successfully built da2ec7a93580 Successfully tagged ddkt-poster-go:latest liugx@MacBook-Pro � ~/work/personal/golang/ddkt-poster � � liugx_code_youhua ● �
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