burble/nomad-driver-containerd
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Add support for hostname.

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This commit is contained in:
Shishir Mahajan 2021-04-19 15:15:14 -07:00
parent 66001112fe
commit f80f41896d
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3 changed files with 10 additions and 0 deletions
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1
README.md
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@ -100,6 +100,7 @@ More detailed instructions are in the [`example README.md`](https://github.com/R
| **cwd** | string | no | Specify the current working directory for your container process. If the directory does not exist, one will be created for you. | | **cwd** | string | no | Specify the current working directory for your container process. If the directory does not exist, one will be created for you. |
| **privileged** | bool | no | Run container in privileged mode. Your container will have all linux capabilities when running in privileged mode. | | **privileged** | bool | no | Run container in privileged mode. Your container will have all linux capabilities when running in privileged mode. |
| **pids_limit** | int64 | no | An integer value that specifies the pid limit for the container. Defaults to unlimited. | | **pids_limit** | int64 | no | An integer value that specifies the pid limit for the container. Defaults to unlimited. |
| **hostname** | string | no | The hostname to assign to the container. When launching more than one of a task (using `count`) with this option set, every container the task starts will have the same hostname. |
| **host_dns** | bool | no | Default (`true`). By default, a container launched using `containerd-driver` will use host `/etc/resolv.conf`. This is similar to [`docker behavior`](https://docs.docker.com/config/containers/container-networking/#dns-services). However, if you don't want to use host DNS, you can turn off this flag by setting `host_dns=false`. | | **host_dns** | bool | no | Default (`true`). By default, a container launched using `containerd-driver` will use host `/etc/resolv.conf`. This is similar to [`docker behavior`](https://docs.docker.com/config/containers/container-networking/#dns-services). However, if you don't want to use host DNS, you can turn off this flag by setting `host_dns=false`. |
| **seccomp** | bool | no | Enable default seccomp profile. List of [`allowed syscalls`](https://github.com/containerd/containerd/blob/master/contrib/seccomp/seccomp_default.go#L51-L395). | | **seccomp** | bool | no | Enable default seccomp profile. List of [`allowed syscalls`](https://github.com/containerd/containerd/blob/master/contrib/seccomp/seccomp_default.go#L51-L395). |
| **seccomp_profile** | string | no | Path to custom seccomp profile. `seccomp` must be set to `true` in order to use `seccomp_profile`. The default `docker` seccomp profile found [`here`](https://github.com/moby/moby/blob/master/profiles/seccomp/default.json) can be used as a reference, and modified to create a custom seccomp profile. | | **seccomp_profile** | string | no | Path to custom seccomp profile. `seccomp` must be set to `true` in order to use `seccomp_profile`. The default `docker` seccomp profile found [`here`](https://github.com/moby/moby/blob/master/profiles/seccomp/default.json) can be used as a reference, and modified to create a custom seccomp profile. |

7
containerd/containerd.go
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@ -176,6 +176,13 @@ func (d *Driver) createContainer(containerConfig *ContainerConfig, config *TaskC
// Set CPU Shares. // Set CPU Shares.
opts = append(opts, oci.WithCPUShares(uint64(containerConfig.CPUShares))) opts = append(opts, oci.WithCPUShares(uint64(containerConfig.CPUShares)))
// Set Hostname
hostname := containerConfig.ContainerName
if config.Hostname != "" {
hostname = config.Hostname
}
opts = append(opts, oci.WithHostname(hostname))
// Add linux devices into the container. // Add linux devices into the container.
for _, device := range config.Devices { for _, device := range config.Devices {
opts = append(opts, oci.WithLinuxDevice(device, "rwm")) opts = append(opts, oci.WithLinuxDevice(device, "rwm"))

2
containerd/driver.go
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@ -100,6 +100,7 @@ var (
"devices": hclspec.NewAttr("devices", "list(string)", false), "devices": hclspec.NewAttr("devices", "list(string)", false),
"privileged": hclspec.NewAttr("privileged", "bool", false), "privileged": hclspec.NewAttr("privileged", "bool", false),
"pids_limit": hclspec.NewAttr("pids_limit", "number", false), "pids_limit": hclspec.NewAttr("pids_limit", "number", false),
"hostname": hclspec.NewAttr("hostname", "string", false),
"host_dns": hclspec.NewDefault( "host_dns": hclspec.NewDefault(
hclspec.NewAttr("host_dns", "bool", false), hclspec.NewAttr("host_dns", "bool", false),
hclspec.NewLiteral("true"), hclspec.NewLiteral("true"),
@ -169,6 +170,7 @@ type TaskConfig struct {
Sysctl hclutils.MapStrStr `codec:"sysctl"` Sysctl hclutils.MapStrStr `codec:"sysctl"`
Privileged bool `codec:"privileged"` Privileged bool `codec:"privileged"`
PidsLimit int64 `codec:"pids_limit"` PidsLimit int64 `codec:"pids_limit"`
Hostname string `codec:"hostname"`
HostDNS bool `codec:"host_dns"` HostDNS bool `codec:"host_dns"`
ImagePullTimeout string `codec:"image_pull_timeout"` ImagePullTimeout string `codec:"image_pull_timeout"`
ExtraHosts []string `codec:"extra_hosts"` ExtraHosts []string `codec:"extra_hosts"`