Initial commit

backend/internal/deployer/deployer.go

@@ -0,0 +1,65 @@
+package deployer
+
+import (
+	"context"
+	"fmt"
+	"io"
+
+	"github.com/docker/docker/api/types"
+	"github.com/docker/docker/api/types/container"
+	"github.com/docker/docker/client"
+	"github.com/docker/go-connections/nat"
+)
+
+type Deployer struct {
+	cli *client.Client
+}
+
+func NewDeployer() (*Deployer, error) {
+	cli, err := client.NewClientWithOpts(client.FromEnv, client.WithAPIVersionNegotiation())
+	if err != nil {
+		return nil, fmt.Errorf("failed to create docker client: %w", err)
+	}
+	return &Deployer{cli: cli}, nil
+}
+
+func (d *Deployer) RunContainer(ctx context.Context, imageName, appName string, hostPort int, envVars []string) (string, error) {
+	config := &container.Config{
+		Image: imageName,
+		ExposedPorts: nat.PortSet{
+			"3000/tcp": struct{}{},
+		},
+		Env: envVars,
+	}
+
+	hostConfig := &container.HostConfig{
+		PortBindings: nat.PortMap{
+			"3000/tcp": []nat.PortBinding{
+				{
+					HostIP:   "0.0.0.0",
+					HostPort: fmt.Sprintf("%d", hostPort),
+				},
+			},
+		},
+		RestartPolicy: container.RestartPolicy{
+			Name: "unless-stopped",
+		},
+	}
+
+	_ = d.cli.ContainerRemove(ctx, appName, types.ContainerRemoveOptions{Force: true})
+
+	resp, err := d.cli.ContainerCreate(ctx, config, hostConfig, nil, nil, appName)
+	if err != nil {
+		return "", fmt.Errorf("failed to create container: %w", err)
+	}
+
+	if err := d.cli.ContainerStart(ctx, resp.ID, types.ContainerStartOptions{}); err != nil {
+		return "", fmt.Errorf("failed to start container: %w", err)
+	}
+
+	return resp.ID, nil
+}
+
+func (d *Deployer) StreamLogs(ctx context.Context, containerID string) (io.ReadCloser, error) {
+	return d.cli.ContainerLogs(ctx, containerID, types.ContainerLogsOptions{ShowStdout: true, ShowStderr: true, Follow: true})
+}