This allows users to set a custom value of attempts that will be made to purge
an existing (not running) container if one is found during task creation.
---------
Co-authored-by: Tim Gross <tgross@hashicorp.com>
* Hacky but shows links and desc
* markdown
* Small pre-test cleanup
* Test for UI description and link rendering
* JSON jobspec docs and variable example job get UI block
* Jobspec documentation for UI block
* Description and links moved into the Title component and made into Helios components
* Marked version upgrade
* Allow links without a description and max description to 1000 chars
* Node 18 for setup-js
* markdown sanitization
* Ui to UI and docs change
* Canonicalize, copy and diff for job.ui
* UI block added to testJob for structs testing
* diff test
* Remove redundant reset
* For readability, changing the receiving pointer of copied job variables
* TestUI endpiont conversion tests
* -require +must
* Nil check on Links
* JobUIConfig.Links as pointer
---------
Co-authored-by: Tim Gross <tgross@hashicorp.com>
Users can override the default sidecar task for Connect workloads. This sidecar
task might need access to certificate stores on the host. Allow adding the
`volume_mount` block to the sidecar task override.
Also fixes a bug where `volume_mount` blocks would not appear in plan diff
outputs.
Fixes: https://github.com/hashicorp/nomad/issues/19786
This change exposes CNI configuration details of a network
namespace as environment variables. This allows a task to use
these value to configure itself; a potential use case is to run
a Raft application binding to IP and Port details configured using
the bridge network mode.
The ACL docs have a section explaining that some parts of the UI need slightly
wider read permissions than expected. These docs should include that you need
`plugin:read` to look at CSI volume pages in the UI.
Fixes: https://github.com/hashicorp/nomad/issues/18527
* drivers/raw_exec: enable setting cgroup override values
This PR enables configuration of cgroup override values on the `raw_exec`
task driver. WARNING: setting cgroup override values eliminates any
gauruntee Nomad can make about resource availability for *any* task on
the client node.
For cgroup v2 systems, set a single unified cgroup path using `cgroup_v2_override`.
The path may be either absolute or relative to the cgroup root.
config {
cgroup_v2_override = "custom.slice/app.scope"
}
or
config {
cgroup_v2_override = "/sys/fs/cgroup/custom.slice/app.scope"
}
For cgroup v1 systems, set a per-controller path for each controller using
`cgroup_v1_override`. The path(s) may be either absolute or relative to
the controller root.
config {
cgroup_v1_override = {
"pids": "custom/app",
"cpuset": "custom/app",
}
}
or
config {
cgroup_v1_override = {
"pids": "/sys/fs/cgroup/pids/custom/app",
"cpuset": "/sys/fs/cgroup/cpuset/custom/app",
}
}
* drivers/rawexec: ensure only one of v1/v2 cgroup override is set
* drivers/raw_exec: executor should error if setting cgroup does not work
* drivers/raw_exec: create cgroups in raw_exec tests
* drivers/raw_exec: ensure we fail to start if custom cgroup set and non-root
* move custom cgroup func into shared file
---------
Co-authored-by: Michael Schurter <mschurter@hashicorp.com>
When available, we provide an environment variable `CONSUL_TOKEN` to tasks, but
this isn't the environment variable expected by the Consul CLI. Job
specifications like deploying an API Gateway become noticeably nicer if we can
instead provide the expected env var.
When setting up auth methods for Consul and Vault in production environments, we
can typically assume that the CA certificate for the JWKS endpoint will be in
the host certificate store (as part of the usual configuration management
cluster admins needs to do). But for quick demos with `-dev` agents, this won't
be the case.
Add a `-jwks-ca-file` parameter to the setup commands so that we can use this
tool to quickly setup WI with `-dev` agents running TLS.
The `mock_driver` is an internal task driver used mostly for testing and
simulating workloads. During the allocrunner v2 work (#4792) its name
changed from `mock_driver` to just `mock` and then back to
`mock_driver`, but the fingreprint key was kept as `driver.mock`.
This results in tasks configured with `driver = "mock"` to be scheduled
(because Nomad thinks the client has a task driver called `mock`), but
fail to actually run (because the Nomad client can't find a driver
called `mock` in its catalog).
Fingerprinting the right name prevents the job from being scheduled in
the first place.
Also removes mentions of the mock driver from documentation since its an
internal driver and not available in any production release.
Add a standalone section to the Consul integration docs showing how to configure
both the Consul agent and the workload to take advantage of Consul DNS. Include
a reference to the new transparent proxy feature as well.
Fixes: https://github.com/hashicorp/nomad/issues/18305
The docs for ephemeral disk migration use the term "best effort" without
outlining the requirements or the cases under which the migration can
fail. Update the docs to make it obvious that ephemeral disk migration is
subject to data loss.
Fixes: https://github.com/hashicorp/nomad/issues/20355
When the `client.servers` block is parsed, we split the port from the
address. This does not correctly handle IPv6 addresses when they are in URL
format (wrapped in brackets), which we require to disambiguate the port and
address.
Fix the parser to correctly split out the port and handle a missing port value
for IPv6. Update the documentation to make the URL format requirement clear.
Fixes: https://github.com/hashicorp/nomad/issues/20310
Update the service mesh integration docs to explain how Consul needs to be
configured for transparent proxy. Update the walkthrough to assume that
`transparent_proxy` mode is the best approach, and move the manually-configured
`upstreams` to a separate section for users who don't want to use Consul DNS.
Ref: https://github.com/hashicorp/nomad/pull/20175
Ref: https://github.com/hashicorp/nomad/pull/20241
This PR adds a job mutator which injects constraints on the job taskgroups
that make use of bridge networking. Creating a bridge network makes use of the
CNI plugins: bridge, firewall, host-local, loopback, and portmap. Starting
with Nomad 1.5 these plugins are fingerprinted on each node, and as such we
can ensure jobs are correctly scheduled only on nodes where they are available,
when needed.
