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2024-04-20 19:18:43
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问题内容
我有一个 go 应用程序,它执行基本的 crud 操作并使用 mongodb 进行数据持久化。
我正在使用 mongo atlas 连接字符串将应用程序连接到 mongodb,当我在本地开发计算机上运行应用程序时,一切正常。但是,当我在 docker-compose 工作流程中将所有内容推送到 docker 容器时,我开始收到此错误:
server selection error: server selection timeout, current topology: { type: replicasetnoprimary, servers: [{ addr: app-test-shard-00-00-zfzs6.mongodb.net:27017, type: unknown, state: connected, average rtt: 0, last error: connection() : x509: certificate signed by unknown authority }, { addr: app-test-shard-00-01-zfzs6.mongodb.net:27017, type: unknown, state: connected, average rtt: 0, last error: connection() : x509: certificate signed by unknown authority }, { addr: app-test-shard-00-02-zfzs6.mongodb.net:27017, type: unknown, state: connected, average rtt: 0, last error: connection() : x509: certificate signed by unknown authority }, ] }
这就是我的 docker-compose.yml 的样子:
services: redis: image: redis restart: always app: image: docker.pkg.github.com/<user>/<project>/<image>:latest ports: - 80:8080 environment: - app_env=docker - gin_mode=release depends_on: - redis restart: on-failure
这就是我的连接字符串的样子: mongodb://用户:[电子邮件受保护]:27017,app-test-shard-00-01-zfzs6.mongodb.net:27017,app-test-shard-00-02-zfzs6.mongodb.net:27017/test ?ssl=true&replicaset=app-test-shard-0&authsource=admin&retrywrites=true&w=majority
我已经检查了这个问题和其他几个问题,但似乎没有一个能解决这个问题。
我还检查了docker的网络配置,我正在使用桥接驱动程序,它应该允许访问外部应用程序(即mongo atlas)
go 版本:1.13
mongo 驱动程序:mongodb/mongo-go-driver v1.2.0
dockerfile:
from golang:alpine as builder workdir /build copy . . run apk add git openssh build-base run git config --global url."[email protected]:".insteadof "https://github.com/" copy keys/id_rsa /root/.ssh/id_rsa run chmod 600 /root/.ssh/id_rsa run ssh-keyscan -t rsa github.com >> /root/.ssh/known_hosts env goprivate=github.com/contributor-org run go build from alpine workdir /org copy --from=builder /build/app . copy config/*.yml config/ run mkdir -p /var/log cmd ["./app"]
数据库连接代码:
type databaseclient struct { // implements the database interface collection *mongo.collection } func getnewclient(cfg *config.config, log *logger.logger) (database, error) { clientoptions := options.client().applyuri(cfg.database.connectionstring) client, err := mongo.newclient(clientoptions) if err != nil { log.errorln(err) } err = client.connect(context.background()) if err != nil { log.fatalln("failed to connect to mongo!", err) return nil, err } log.info("connected to mongo!") db := client.database(cfg.database.database) if db == nil { err := fmt.errorf("db (%s) not found", cfg.database) log.error(err) return nil, err } collection := db.collection(cfg.database.collection) if collection == nil { err := fmt.errorf("collection (%s) not found on db (%s)", cfg.database.collection, cfg.database.database) log.error(err) return nil, err } return &databaseclient{collection: collection}, nil }
数据库接口:
type Database interface { GetByBookname(context.Context, string) (*model.Book, error) GetOneByFilter(context.Context, map[string]interface{}) (*model.Book, error) GetAll(context.Context) ([]*model.Book, error) GetAllByFilters(context.Context, map[string]interface{}) ([]*model.Book, error) AddBook(context.Context, *model.Book) (string, error) UpdateBook(context.Context, string, map[string]interface{}) (*model.Book, error) DeactivateBook(context.Context, string) error OverwriteBook(context.Context, string, *model.Book) (*model.Book, error) OnboardBook(*model.Book, string, bool) (string, error) }
解决方案
我通过将 &tlsinsecure=true
添加到 mongodb uri 快速修复了此问题。尽管如此,仍在寻找正确的方法来修复它。
编辑:
也解决了这个问题,将 ca-certificates
添加到 docker 映像:
# builder step... from alpine:3 run apk update \ && apk upgrade \ && apk add --no-cache \ ca-certificates \ && update-ca-certificates 2>/dev/null || true copy --from=builder /build/main ./ cmd ["/main"]
较小图像的另一个选项:
# Builder step... FROM alpine:3 as certs RUN apk --no-cache add ca-certificates FROM scratch as app COPY --from=builder /build/main ./ COPY --from=certs /etc/ssl/certs/ca-certificates.crt /etc/ssl/certs/ca-certificates.crt ENTRYPOINT ["/main"]
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