egutierrez
90693fb32f
Funciones impuras para gestión de contenedores: docker_build_image, docker_compose_up/down, docker_volume_create/list/remove, generate_dockerfile, write_dockerfile, go_build_binary, health_check_http, deploy_app y stop_app. Todas con tests unitarios donde aplica. Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
52 lines
1.5 KiB
Go
52 lines
1.5 KiB
Go
package infra
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import (
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"fmt"
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"os/exec"
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"strings"
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)
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// DockerBuildImage construye una imagen Docker desde un directorio con Dockerfile.
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// Retorna el image ID de la imagen construida.
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func DockerBuildImage(contextDir, tag string, buildArgs map[string]string) (string, error) {
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args := []string{"build", "-t", tag}
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for k, v := range buildArgs {
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args = append(args, "--build-arg", k+"="+v)
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}
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args = append(args, contextDir)
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out, err := exec.Command("docker", args...).CombinedOutput()
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if err != nil {
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return "", fmt.Errorf("docker build %s: %s", tag, strings.TrimSpace(string(out)))
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}
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// Extraer el image ID de la ultima linea de output
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// docker build imprime "Successfully built <id>" o con BuildKit "writing image sha256:<id>"
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lines := strings.Split(strings.TrimSpace(string(out)), "\n")
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for i := len(lines) - 1; i >= 0; i-- {
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line := strings.TrimSpace(lines[i])
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if strings.Contains(line, "Successfully built ") {
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parts := strings.Fields(line)
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return parts[len(parts)-1], nil
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}
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if strings.Contains(line, "sha256:") {
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// BuildKit: extraer sha256:...
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idx := strings.Index(line, "sha256:")
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id := line[idx:]
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if sp := strings.IndexAny(id, " \t,"); sp != -1 {
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id = id[:sp]
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}
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return id, nil
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}
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}
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// Si no encontramos el ID en el output, inspeccionar por tag
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inspectOut, err2 := exec.Command("docker", "inspect", "--format", "{{.Id}}", tag).Output()
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if err2 != nil {
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return tag, nil
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}
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return strings.TrimSpace(string(inspectOut)), nil
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}
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