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// Copyright 2022 The Gitea Authors. All rights reserved.
// SPDX-License-Identifier: MIT
package config
import (
"fmt"
"os"
"path/filepath"
"time"
"github.com/joho/godotenv"
log "github.com/sirupsen/logrus"
"gopkg.in/yaml.v3"
)
// Log represents the configuration for logging.
type Log struct {
Level string `yaml:"level"` // Level indicates the logging level.
}
// Runner represents the configuration for the runner.
type Runner struct {
File string `yaml:"file"` // File specifies the file path for the runner.
Capacity int `yaml:"capacity"` // Capacity specifies the capacity of the runner.
Envs map[string]string `yaml:"envs"` // Envs stores environment variables for the runner.
EnvFile string `yaml:"env_file"` // EnvFile specifies the path to the file containing environment variables for the runner.
Timeout time.Duration `yaml:"timeout"` // Timeout specifies the duration for runner timeout.
ShutdownTimeout time.Duration `yaml:"shutdown_timeout"` // ShutdownTimeout specifies the duration to wait for running jobs to complete during a shutdown of the runner.
Insecure bool `yaml:"insecure"` // Insecure indicates whether the runner operates in an insecure mode.
FetchTimeout time.Duration `yaml:"fetch_timeout"` // FetchTimeout specifies the timeout duration for fetching resources.
FetchInterval time.Duration `yaml:"fetch_interval"` // FetchInterval specifies the interval duration for fetching resources.
ReportInterval time.Duration `yaml:"report_interval"` // ReportInterval specifies the interval duration for reporting status and logs of a running job.
Labels []string `yaml:"labels"` // Labels specify the labels of the runner. Labels are declared on each startup
}
// Cache represents the configuration for caching.
type Cache struct {
Enabled *bool `yaml:"enabled"` // Enabled indicates whether caching is enabled. It is a pointer to distinguish between false and not set. If not set, it will be true.
Dir string `yaml:"dir"` // Dir specifies the directory path for caching.
Host string `yaml:"host"` // Host specifies the caching host.
Port uint16 `yaml:"port"` // Port specifies the caching port.
ExternalServer string `yaml:"external_server"` // ExternalServer specifies the URL of external cache server
}
// Container represents the configuration for the container.
type Container struct {
Network string `yaml:"network"` // Network specifies the network for the container.
NetworkMode string `yaml:"network_mode"` // Deprecated: use Network instead. Could be removed after Gitea 1.20
EnableIPv6 bool `yaml:"enable_ipv6"` // EnableIPv6 indicates whether the network is created with IPv6 enabled.
Privileged bool `yaml:"privileged"` // Privileged indicates whether the container runs in privileged mode.
Options string `yaml:"options"` // Options specifies additional options for the container.
WorkdirParent string `yaml:"workdir_parent"` // WorkdirParent specifies the parent directory for the container's working directory.
ValidVolumes []string `yaml:"valid_volumes"` // ValidVolumes specifies the volumes (including bind mounts) can be mounted to containers.
DockerHost string `yaml:"docker_host"` // DockerHost specifies the Docker host. It overrides the value specified in environment variable DOCKER_HOST.
ForcePull bool `yaml:"force_pull"` // Pull docker image(s) even if already present
}
// Host represents the configuration for the host.
type Host struct {
WorkdirParent string `yaml:"workdir_parent"` // WorkdirParent specifies the parent directory for the host's working directory.
}
// Config represents the overall configuration.
type Config struct {
Log Log `yaml:"log"` // Log represents the configuration for logging.
Runner Runner `yaml:"runner"` // Runner represents the configuration for the runner.
Cache Cache `yaml:"cache"` // Cache represents the configuration for caching.
Container Container `yaml:"container"` // Container represents the configuration for the container.
Host Host `yaml:"host"` // Host represents the configuration for the host.
}
// Tune the config settings accordingly to the Forgejo instance that will be used.
func (c *Config) Tune(instanceURL string) {
if instanceURL == "https://codeberg.org" {
if c.Runner.FetchInterval < 30*time.Second {
log.Info("The runner is configured to be used by a public instance, fetch interval is set to 30 seconds.")
c.Runner.FetchInterval = 30 * time.Second
}
}
}
// LoadDefault returns the default configuration.
// If file is not empty, it will be used to load the configuration.
func LoadDefault(file string) (*Config, error) {
cfg := &Config{}
if file != "" {
content, err := os.ReadFile(file)
if err != nil {
return nil, fmt.Errorf("open config file %q: %w", file, err)
}
if err := yaml.Unmarshal(content, cfg); err != nil {
return nil, fmt.Errorf("parse config file %q: %w", file, err)
}
}
compatibleWithOldEnvs(file != "", cfg)
if cfg.Runner.EnvFile != "" {
if stat, err := os.Stat(cfg.Runner.EnvFile); err == nil && !stat.IsDir() {
envs, err := godotenv.Read(cfg.Runner.EnvFile)
if err != nil {
return nil, fmt.Errorf("read env file %q: %w", cfg.Runner.EnvFile, err)
}
if cfg.Runner.Envs == nil {
cfg.Runner.Envs = map[string]string{}
}
for k, v := range envs {
cfg.Runner.Envs[k] = v
}
}
}
if cfg.Log.Level == "" {
cfg.Log.Level = "info"
}
if cfg.Runner.File == "" {
cfg.Runner.File = ".runner"
}
if cfg.Runner.Capacity <= 0 {
cfg.Runner.Capacity = 1
}
if cfg.Runner.Timeout <= 0 {
cfg.Runner.Timeout = 3 * time.Hour
}
if cfg.Cache.Enabled == nil {
b := true
cfg.Cache.Enabled = &b
}
if *cfg.Cache.Enabled {
if cfg.Cache.Dir == "" {
home, _ := os.UserHomeDir()
cfg.Cache.Dir = filepath.Join(home, ".cache", "actcache")
}
}
if cfg.Container.WorkdirParent == "" {
cfg.Container.WorkdirParent = "workspace"
}
if cfg.Host.WorkdirParent == "" {
home, _ := os.UserHomeDir()
cfg.Host.WorkdirParent = filepath.Join(home, ".cache", "act")
}
if cfg.Runner.FetchTimeout <= 0 {
cfg.Runner.FetchTimeout = 5 * time.Second
}
if cfg.Runner.FetchInterval <= 0 {
cfg.Runner.FetchInterval = 2 * time.Second
}
if cfg.Runner.ReportInterval <= 0 {
cfg.Runner.ReportInterval = time.Second
}
// although `container.network_mode` will be deprecated, but we have to be compatible with it for now.
if cfg.Container.NetworkMode != "" && cfg.Container.Network == "" {
log.Warn("You are trying to use deprecated configuration item of `container.network_mode`, please use `container.network` instead.")
if cfg.Container.NetworkMode == "bridge" {
// Previously, if the value of `container.network_mode` is `bridge`, we will create a new network for job.
// But “bridge” is easily confused with the bridge network created by Docker by default.
// So we set the value of `container.network` to empty string to make `act_runner` automatically create a new network for job.
cfg.Container.Network = ""
} else {
cfg.Container.Network = cfg.Container.NetworkMode
}
}
return cfg, nil
}
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