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Initial WIP logic to handle loading configuration from the disk using viper

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This commit is contained in:
Dane Everitt
2021-01-12 21:14:57 -08:00
parent d45a159456
commit 9480ccdbba
9 changed files with 213 additions and 287 deletions
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105
environment/docker.go
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@@ -6,112 +6,95 @@ import (
"sync"
"github.com/apex/log"
"github.com/docker/docker/api/types"
"github.com/docker/docker/api/types/network"
"github.com/docker/docker/client"
"github.com/pterodactyl/wings/config"
"github.com/spf13/viper"
)
var _cmu sync.Mutex
var _conce sync.Once
var _client *client.Client
// Return a Docker client to be used throughout the codebase. Once a client has been created it
// will be returned for all subsequent calls to this function.
// DockerClient returns a Docker client to be used throughout the codebase. Once
// a client has been created it will be returned for all subsequent calls to this
// function.
func DockerClient() (*client.Client, error) {
_cmu.Lock()
defer _cmu.Unlock()
if _client != nil {
return _client, nil
}
_client, err := client.NewClientWithOpts(client.FromEnv, client.WithAPIVersionNegotiation())
var err error
_conce.Do(func() {
_client, err = client.NewClientWithOpts(client.FromEnv, client.WithAPIVersionNegotiation())
})
return _client, err
}
// Configures the required network for the docker environment.
func ConfigureDocker(c *config.DockerConfiguration) error {
// ConfigureDocker configures the required network for the docker environment.
func ConfigureDocker(ctx context.Context) error {
// Ensure the required docker network exists on the system.
cli, err := DockerClient()
if err != nil {
return err
}
resource, err := cli.NetworkInspect(context.Background(), c.Network.Name, types.NetworkInspectOptions{})
if err != nil && client.IsErrNotFound(err) {
log.Info("creating missing pterodactyl0 interface, this could take a few seconds...")
return createDockerNetwork(cli, c)
} else if err != nil {
log.WithField("error", err).Fatal("failed to create required docker network for containers")
nw := viper.Sub("docker.network")
resource, err := cli.NetworkInspect(ctx, nw.GetString("name"), types.NetworkInspectOptions{})
if err != nil {
if client.IsErrNotFound(err) {
log.Info("creating missing pterodactyl0 interface, this could take a few seconds...")
if err := createDockerNetwork(ctx, cli); err != nil {
return err
}
}
return err
} else {
nw.Set("driver", resource.Driver)
}
switch resource.Driver {
switch nw.GetString("driver") {
case "host":
c.Network.Interface = "127.0.0.1"
c.Network.ISPN = false
return nil
nw.Set("interface", "127.0.0.1")
nw.Set("ispn", false)
case "overlay":
fallthrough
case "weavemesh":
c.Network.Interface = ""
c.Network.ISPN = true
return nil
nw.Set("interface", "")
nw.Set("ispn", true)
default:
c.Network.ISPN = false
nw.Set("ispn", false)
}
return nil
}
// Creates a new network on the machine if one does not exist already.
func createDockerNetwork(cli *client.Client, c *config.DockerConfiguration) error {
_, err := cli.NetworkCreate(context.Background(), c.Network.Name, types.NetworkCreate{
Driver: c.Network.Driver,
func createDockerNetwork(ctx context.Context, cli *client.Client) error {
nw := viper.Sub("docker.network")
_, err := cli.NetworkCreate(ctx, nw.GetString("name"), types.NetworkCreate{
Driver: nw.GetString("driver"),
EnableIPv6: true,
Internal: c.Network.IsInternal,
Internal: nw.GetBool("is_internal"),
IPAM: &network.IPAM{
Config: []network.IPAMConfig{
{
Subnet: c.Network.Interfaces.V4.Subnet,
Gateway: c.Network.Interfaces.V4.Gateway,
Subnet: nw.GetString("interfaces.v4.subnet"),
Gateway: nw.GetString("interfaces.v4.gateway"),
},
{
Subnet: c.Network.Interfaces.V6.Subnet,
Gateway: c.Network.Interfaces.V6.Gateway,
Subnet: nw.GetString("interfaces.v6.subnet"),
Gateway: nw.GetString("interfaces.v6.gateway"),
},
},
},
Options: map[string]string{
"encryption": "false",
"com.docker.network.bridge.default_bridge": "false",
"com.docker.network.bridge.enable_icc": strconv.FormatBool(c.Network.EnableICC),
"com.docker.network.bridge.enable_icc": strconv.FormatBool(nw.GetBool("enable_icc")),
"com.docker.network.bridge.enable_ip_masquerade": "true",
"com.docker.network.bridge.host_binding_ipv4": "0.0.0.0",
"com.docker.network.bridge.name": "pterodactyl0",
"com.docker.network.driver.mtu": "1500",
},
})
if err != nil {
return err
driver := nw.GetString("driver")
if driver != "host" && driver != "overlay" && driver != "weavemesh" {
nw.Set("interface", nw.GetString("interfaces.v4.gateway"))
}
switch c.Network.Driver {
case "host":
c.Network.Interface = "127.0.0.1"
c.Network.ISPN = false
break
case "overlay":
case "weavemesh":
c.Network.Interface = ""
c.Network.ISPN = true
break
default:
c.Network.Interface = c.Network.Interfaces.V4.Gateway
c.Network.ISPN = false
break
}
return nil
return err
}