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Add capabilities to task drivers' pages #8476

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Jul 21, 2020
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Add capabilities to task drivers' pages #8476

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fefbe1d
Describe capabilities for task drivers
kobayashi Jul 20, 2020
83d697f
modify capability implementations
kobayashi Jul 21, 2020
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11 changes: 11 additions & 0 deletions website/pages/docs/drivers/docker.mdx
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Expand Up @@ -627,6 +627,17 @@ Some networking modes like `container` or `none` will require coordination
outside of Nomad. First-class support for these options may be improved later
through Nomad plugins or dynamic job configuration.

## Capabilities

| Feature | Implementation |
| --- | --- |
| SendSignals | true |
| Exec | true |
| FSIsolation | FSIsolationImage |
| NetIsolationModes | NetIsolationModeHost, NetIsolationmodeGroup, NetIsolationModeTask |
| MustInitiateNetwork | true |
| MountConfigs | MountConfigSupportAll |

## Client Requirements

Nomad requires Docker to be installed and running on the host alongside the
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10 changes: 10 additions & 0 deletions website/pages/docs/drivers/exec.mdx
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Expand Up @@ -77,6 +77,16 @@ task "example" {
}
```

## Capabilities

| Feature | Implementation |
| --- | --- |
| SendSignals | true |
| Exec | true |
| FSIsolation | FSIsolationImage |
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Should be chroot: https://github.com/hashicorp/nomad/blob/v0.12.0/drivers/exec/driver.go#L82

| NetIsolationModes | NetIsolationModeHost, NetIsolationmodeGroup |
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We should include MustInitiateNetwork | false everywhere it's not explicitly set to true by default.

| MountConfigs | MountConfigSupportAll |

## Client Requirements

The `exec` driver can only be run when on Linux and running Nomad as root.
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9 changes: 9 additions & 0 deletions website/pages/docs/drivers/java.mdx
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Expand Up @@ -97,6 +97,15 @@ task "web" {
}
```

## Capabilities

| Feature | Implementation |
| --- | --- |
| Exec | false |
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| FSIsolation | FSIsolationNone |
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On Linux the Java capabilities are slightly different: https://github.com/hashicorp/nomad/blob/v0.12.0/drivers/java/driver.go#L98-L101

| NetIsolationModes | NetIsolationModeHost, NetIsolationmodeGroup |
| MountConfigs | MountConfigSupportNone |

## Client Requirements

The `java` driver requires Java to be installed and in your system's `$PATH`. On
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9 changes: 9 additions & 0 deletions website/pages/docs/drivers/qemu.mdx
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Expand Up @@ -101,6 +101,15 @@ task "virtual" {
}
```

## Capabilities

| Feature | Implementation |
| --- | --- |
| SendSignals | false |
| Exec | false |
| FSIsolation | FSIsolationImage |
| MountConfigs | MountConfigSupportNone |
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We should include | NetIsolationModes | none | here


## Client Requirements

The `qemu` driver requires Qemu to be installed and in your system's `$PATH`.
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10 changes: 10 additions & 0 deletions website/pages/docs/drivers/raw_exec.mdx
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Expand Up @@ -73,6 +73,16 @@ task "example" {
}
```

## Capabilities

| Feature | Implementation |
| --- | --- |
| SendSignals | true |
| Exec | true |
| FSIsolation | FSIsolationNone |
| NetIsolationModes | NetIsolationModeHost, NetIsolationmodeGroup |
| MountConfigs | MountConfigSupportNone |

## Client Requirements

The `raw_exec` driver can run on all supported operating systems. For security
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