Function Normalize

loader/normalize.go:29–147

Normalize compose project by moving deprecated attributes to their canonical position and injecting implicit defaults

(dict map[string]any, env types.Mapping)

// Normalize compose project by moving deprecated attributes to their canonical position and injecting implicit defaults
func Normalize(dict map[string]any, env types.Mapping) (map[string]any, error) {
	normalizeNetworks(dict)

	if d, ok := dict["services"]; ok {
		services := d.(map[string]any)
		for name, s := range services {
			service := s.(map[string]any)

			if service["pull_policy"] == types.PullPolicyIfNotPresent {
				service["pull_policy"] = types.PullPolicyMissing
			}

			fn := func(s string) (string, bool) {
				v, ok := env[s]
				return v, ok
			}

			if b, ok := service["build"]; ok {
				build := b.(map[string]any)
				if build["context"] == nil {
					build["context"] = "."
				}
				if build["dockerfile"] == nil && build["dockerfile_inline"] == nil {
					build["dockerfile"] = "Dockerfile"
				}

				if a, ok := build["args"]; ok {
					build["args"], _ = resolve(a, fn, false)
				}

				service["build"] = build
			}

			if e, ok := service["environment"]; ok {
				service["environment"], _ = resolve(e, fn, true)
			}

			var dependsOn map[string]any
			if d, ok := service["depends_on"]; ok {
				dependsOn = d.(map[string]any)
			} else {
				dependsOn = map[string]any{}
			}
			if l, ok := service["links"]; ok {
				links := l.([]any)
				for _, e := range links {
					link := e.(string)
					parts := strings.Split(link, ":")
					if len(parts) == 2 {
						link = parts[0]
					}
					if _, ok := dependsOn[link]; !ok {
						dependsOn[link] = map[string]any{
							"condition": types.ServiceConditionStarted,
							"restart":   true,
							"required":  true,
						}
					}