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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,33 @@ | ||
| FROM golang:1.20-alpine3.17 as builder | ||
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| RUN apk update && \ | ||
| apk add --no-cache file build-base | ||
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| WORKDIR /go/src/app | ||
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| COPY . . | ||
| RUN mkdir /app | ||
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| RUN go mod download | ||
| RUN CGO_ENABLED=1 GOPROXY=direct go build -o /app/birdhouse -mod=mod ./cmd/main.go | ||
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| # deploy-stage | ||
| FROM alpine:latest | ||
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| RUN apk update && \ | ||
| apk add --no-cache curl bash | ||
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| RUN mkdir /key | ||
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| WORKDIR /app | ||
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| COPY --from=builder /app ./ | ||
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| RUN apk update && \ | ||
| apk add --no-cache curl bash | ||
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| HEALTHCHECK --interval=30s --start-period=1m --timeout=30s --retries=3 \ | ||
| CMD curl --silent --fail --fail-early http://127.0.0.1:$PORT/docs || exit 1 | ||
| EXPOSE $PORT | ||
| ENTRYPOINT ["/app/birdhouse"] |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,75 @@ | ||
| package internal | ||
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| import ( | ||
| "log" | ||
| "os" | ||
| "strconv" | ||
| ) | ||
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| // MustString func returns environment variable value as a string value, | ||
| // If variable doesn't exist or is not set, exits from the runtime | ||
| func MustString(key string) string { | ||
| value, exists := os.LookupEnv(key) | ||
| if !exists { | ||
| log.Fatalf("required ENV %q is not set", key) | ||
| } | ||
| if value == "" { | ||
| log.Fatalf("required ENV %q is empty", key) | ||
| } | ||
| return value | ||
| } | ||
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| // GetString func returns environment variable value as a string value, | ||
| // If variable doesn't exist or is not set, returns fallback value | ||
| func GetString(key string, fallback string) string { | ||
| value, exists := os.LookupEnv(key) | ||
| if !exists { | ||
| return fallback | ||
| } | ||
| return value | ||
| } | ||
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| // MustInt func returns environment variable value as an integer value, | ||
| // If variable doesn't exist or is not set, exits from the runtime | ||
| func MustInt(key string) int { | ||
| value, exists := os.LookupEnv(key) | ||
| if !exists { | ||
| log.Fatalf("required ENV %q is not set", key) | ||
| } | ||
| if value == "" { | ||
| log.Fatalf("required ENV %q is empty", key) | ||
| } | ||
| res, err := strconv.ParseInt(value, 10, 32) | ||
| if err != nil { | ||
| log.Fatalf("required ENV %q must be a number but it's %q", key, value) | ||
| } | ||
| return int(res) | ||
| } | ||
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| // GetInt func returns environment variable value as a integer value, | ||
| // If variable doesn't exist or is not set, returns fallback value | ||
| func GetInt(key string, fallback int) int { | ||
| value, exists := os.LookupEnv(key) | ||
| if !exists { | ||
| return fallback | ||
| } | ||
| res, err := strconv.ParseInt(value, 10, 32) | ||
| if err != nil { | ||
| return fallback | ||
| } | ||
| return int(res) | ||
| } | ||
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| // GetFloat func returns environment variable value as a integer value, | ||
| // If variable doesn't exist or is not set, returns fallback value | ||
| func GetFloat(key string, fallback int) int { | ||
| value, exists := os.LookupEnv(key) | ||
| if !exists { | ||
| return fallback | ||
| } | ||
| res, err := strconv.ParseFloat(value, 64) | ||
| if err != nil { | ||
| return fallback | ||
| } | ||
| return int(res) | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,39 @@ | ||
| package internal | ||
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| import ( | ||
| "database/sql" | ||
| "fmt" | ||
| "log" | ||
| ) | ||
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| // DBConnect inits database connection | ||
| func DBConnect() *sql.DB { | ||
| // db connection env variables | ||
| var ( | ||
| dbHost = MustString("DATABASE_HOST") | ||
| dbPort = MustInt("DATABASE_PORT") | ||
| dbName = MustString("DATABASE_NAME") | ||
| dbUsername = MustString("DATABASE_USER") | ||
| dbPassword = MustString("DATABASE_PASS") | ||
| dbTimeout = GetInt("DATABASE_CONNECT_TIMEOUT", 15) | ||
| dbSSLMode = GetString("DATABASE_SSL_MODE", "disable") | ||
| ) | ||
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| dbConnStr := fmt.Sprintf( | ||
| "host=%s port=%d user=%s password=%s dbname=%s sslmode=%s connect_timeout=%d", | ||
| dbHost, dbPort, dbUsername, dbPassword, dbName, dbSSLMode, dbTimeout, | ||
| ) | ||
| db, err := sql.Open("postgres", dbConnStr) | ||
| if err != nil { | ||
| log.Fatalf("could not connect to database: %v", err) | ||
| } | ||
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| db.SetMaxOpenConns(50) | ||
| db.SetMaxIdleConns(0) | ||
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| if err := db.Ping(); err != nil { | ||
| log.Fatalf("database is not available right now: %v", err) | ||
| } | ||
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| return db | ||
| } |
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