101 lines
2.8 KiB
Go
101 lines
2.8 KiB
Go
package environment
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import (
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"context"
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"strconv"
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"sync"
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"github.com/apex/log"
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"github.com/docker/docker/api/types"
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"github.com/docker/docker/api/types/network"
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"github.com/docker/docker/client"
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"github.com/spf13/viper"
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)
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var _conce sync.Once
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var _client *client.Client
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// DockerClient returns a Docker client to be used throughout the codebase. Once
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// a client has been created it will be returned for all subsequent calls to this
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// function.
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func DockerClient() (*client.Client, error) {
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var err error
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_conce.Do(func() {
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_client, err = client.NewClientWithOpts(client.FromEnv, client.WithAPIVersionNegotiation())
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})
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return _client, err
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}
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// ConfigureDocker configures the required network for the docker environment.
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func ConfigureDocker(ctx context.Context) error {
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// Ensure the required docker network exists on the system.
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cli, err := DockerClient()
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if err != nil {
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return err
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}
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nw := viper.Sub("docker.network")
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resource, err := cli.NetworkInspect(ctx, nw.GetString("name"), types.NetworkInspectOptions{})
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if err != nil {
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if client.IsErrNotFound(err) {
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log.Info("creating missing pterodactyl0 interface, this could take a few seconds...")
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if err := createDockerNetwork(ctx, cli); err != nil {
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return err
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}
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}
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return err
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} else {
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nw.Set("driver", resource.Driver)
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}
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switch nw.GetString("driver") {
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case "host":
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nw.Set("interface", "127.0.0.1")
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nw.Set("ispn", false)
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case "overlay":
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fallthrough
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case "weavemesh":
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nw.Set("interface", "")
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nw.Set("ispn", true)
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default:
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nw.Set("ispn", false)
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}
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return nil
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}
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// Creates a new network on the machine if one does not exist already.
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func createDockerNetwork(ctx context.Context, cli *client.Client) error {
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nw := viper.Sub("docker.network")
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_, err := cli.NetworkCreate(ctx, nw.GetString("name"), types.NetworkCreate{
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Driver: nw.GetString("driver"),
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EnableIPv6: true,
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Internal: nw.GetBool("is_internal"),
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IPAM: &network.IPAM{
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Config: []network.IPAMConfig{
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{
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Subnet: nw.GetString("interfaces.v4.subnet"),
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Gateway: nw.GetString("interfaces.v4.gateway"),
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},
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{
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Subnet: nw.GetString("interfaces.v6.subnet"),
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Gateway: nw.GetString("interfaces.v6.gateway"),
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},
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},
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},
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Options: map[string]string{
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"encryption": "false",
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"com.docker.network.bridge.default_bridge": "false",
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"com.docker.network.bridge.enable_icc": strconv.FormatBool(nw.GetBool("enable_icc")),
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"com.docker.network.bridge.enable_ip_masquerade": "true",
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"com.docker.network.bridge.host_binding_ipv4": "0.0.0.0",
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"com.docker.network.bridge.name": "pterodactyl0",
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"com.docker.network.driver.mtu": "1500",
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},
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})
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driver := nw.GetString("driver")
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if driver != "host" && driver != "overlay" && driver != "weavemesh" {
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nw.Set("interface", nw.GetString("interfaces.v4.gateway"))
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}
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return err
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}
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