Merge pull request #17 from danvergara/docker-readme

Docker readme

Dockerfile

@@ -7,20 +7,30 @@ RUN apt-get update \
   && apt-get -y install netcat curl \
   && apt-get clean
 
-COPY go.* ./
+COPY go.* Makefile ./
 RUN go mod download
+
+COPY scripts ./scripts
+RUN make install-migrate
+
 COPY . . 
 
 ARG TARGETOS
 ARG TARGETARCH
 
 RUN GOOS=${TARGETOS} GOARCH=${TARGETARCH} CGO_ENABLED=0 go build -o seeder ./cli
 
-RUN make install-migrate
-
 FROM alpine:3.14 AS bin
 
-RUN apk add --no-cache ca-certificates
+RUN apk add --no-cache ca-certificates git make musl-dev go
+
+# Configure Go
+ENV GOROOT /usr/lib/go
+ENV GOPATH /go
+ENV PATH /go/bin:$PATH
+
+RUN mkdir -p ${GOPATH}/src ${GOPATH}/bin
+WORKDIR /seeder
 
 LABEL org.opencontainers.image.documentation="https://github.com/danvergara/seeder" \
 	org.opencontainers.image.source="https://github.com/danvergara/seeder" \

README.md

@@ -53,8 +53,6 @@ $ go get github.com/danvergara/seeder
 
 ## Help
 
-
-
 ```
 Seeder is a ClI tool and Golang library that helps to
 seeds databases using golang code. ORM or SQL driver agnostic.
@@ -224,6 +222,18 @@ You can skip the --path flag is yout main is located at `db/main.go`. The recomm
         └── users.go
 ```
 
+### Docker Usage
+
+```sh
+$ docker run -v "$(pwd):/seeder" seeder --path path/to/main.go
+```
+
+If you neeed set to up environment variables to connect with the database:
+
+```sh
+$ docker run -v "$(pwd):/seeder" --network host -e DB_HOST='localhost' -e DB_USER='postgres' -e DB_PASSWORD='password' -e DB_NAME='users' -e DB_PORT='5432' -e DB_DRIVER='postgres' seeder --path path/to/main.go
+```
+
 ## Contribute
 
 - Fork this repository

cli/cmd/root.go

@@ -18,8 +18,8 @@ limitations under the License.
 package cmd
 
 import (
-	"bytes"
 	"fmt"
+	"log"
 	"os"
 	"os/exec"
 	"path/filepath"
@@ -38,12 +38,13 @@ func NewRootCmd() *cobra.Command {
 		Long: `Seeder is a ClI tool and Golang library that helps to
 seeds databases using golang code. ORM or SQL driver agnostic.`,
 		RunE: func(cmd *cobra.Command, args []string) error {
-			var out bytes.Buffer
-
 			c := exec.Command("go", "run", fmt.Sprint(path, "/", "main.go"))
-			c.Stdout = &out
+
+			c.Stdout = os.Stdout
+			c.Stderr = os.Stderr
 
 			if err := c.Run(); err != nil {
+				log.Printf("error %s", err)
 				return err
 			}