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Copy pathlambda.go
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130 lines (107 loc) · 3.1 KB
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package lambda
import (
"bytes"
"context"
"encoding/json"
"fmt"
"io"
"os"
"strings"
"github.com/docker/docker/api/types"
"github.com/docker/docker/api/types/container"
"github.com/docker/docker/api/types/network"
"github.com/docker/docker/client"
"github.com/docker/docker/pkg/stdcopy"
"github.com/lbernardo/lambda-local/model"
)
type ContentRequest struct {
Body string `json:"body"`
PathParameters map[string]string `json:"pathparameters"`
}
func PullImageDocker(runtime string) {
fmt.Println("Prepare image docker")
imageName := "lambci/lambda:" + runtime
ctx := context.Background()
cli, err := client.NewClientWithOpts(client.FromEnv, client.WithAPIVersionNegotiation())
if err != nil {
panic(err)
}
reader, err := cli.ImagePull(ctx, imageName, types.ImagePullOptions{})
if err != nil {
panic(err)
}
io.Copy(os.Stdout, reader)
}
func ReplaceEnvironment(env string) string {
return strings.ReplaceAll(env, "${opt:stage, self:provider.stage}", "dev")
}
func ExecuteDockerLambda(volume string, net string, handler string, runtime string, environment map[string]string, body io.ReadCloser, parameters map[string]string) (model.Result, string) {
var result model.Result
var output bytes.Buffer
var contentRequest ContentRequest
buf := new(bytes.Buffer)
buf.ReadFrom(body)
bodyStr := buf.String()
var strEnv []string
imageName := "lambci/lambda:" + runtime
for n, env := range environment {
strEnv = append(strEnv, n+"="+ReplaceEnvironment(env))
}
ctx := context.Background()
cli, err := client.NewClientWithOpts(client.FromEnv, client.WithAPIVersionNegotiation())
if err != nil {
panic(err)
}
bodyStr = strings.ReplaceAll(bodyStr, "\t", "")
bodyStr = strings.ReplaceAll(bodyStr, "\n", "")
contentRequest.Body = bodyStr
contentRequest.PathParameters = parameters
jsonRequest, _ := json.Marshal(contentRequest)
var executeCommand []string
executeCommand = append(executeCommand, handler)
executeCommand = append(executeCommand, string(jsonRequest))
// Network config
networkingConfig := &network.NetworkingConfig{}
if net != "" {
networkingConfig.EndpointsConfig = map[string]*network.EndpointSettings{
net: &network.EndpointSettings{},
}
}
resp, err := cli.ContainerCreate(ctx, &container.Config{
Image: imageName,
Cmd: executeCommand,
Env: strEnv,
}, &container.HostConfig{
Binds: []string{volume + ":/var/task"},
}, networkingConfig, "")
if err != nil {
panic(err)
}
err = cli.ContainerStart(ctx, resp.ID, types.ContainerStartOptions{})
if err != nil {
panic(err)
}
statusCh, errCh := cli.ContainerWait(ctx, resp.ID, container.WaitConditionNotRunning)
select {
case err := <-errCh:
if err != nil {
panic(err)
}
case <-statusCh:
}
reader, err := cli.ContainerLogs(ctx, resp.ID, types.ContainerLogsOptions{
ShowStdout: true,
ShowStderr: true,
})
if err != nil {
panic(err)
}
stdcopy.StdCopy(&output, os.Stderr, reader)
str := output.String()
err = json.Unmarshal([]byte(str), &result)
if err != nil {
fmt.Println(err)
}
cli.ContainerRemove(ctx, resp.ID, types.ContainerRemoveOptions{})
return result, str
}