This moves from throwing an error when an app is rejected due to unmet
requirements (because of contracts) to storing the target with a
`rejected` flag on the database.
The application manager filters rejected apps when calculating steps to
prevent them from affecting the current state. The state engine uses the
rejection info to generate the state report.
Change-type: minor
Users may specify dnsu2t config by including a `dns` field
in the `proxy` section of PATCH /v1/device/host-config's body:
```
{
network: {
proxy: {
dns: '1.1.1.1:53',
}
}
}
```
If `dns` is a string, ADDRESS and PORT are required and should be
in the format `ADDRESS:PORT`. The endpoint with error with
code 400 if either ADDRESS or PORT are missing.
`dns` may also be a boolean. If true, defaults will be configured.
If false, the dns configuration will be removed.
If `proxy` is patched to empty, `dns` will be removed regardless
of its current or input configs, as `dns` depends on an active
redsocks proxy to function.
Change-type: minor
Signed-off-by: Christina Ying Wang <christina@balena.io>
Before v1, the blinking module would not throw when the passed led file
does not exist. This change checks for file existence and defaults to
`/dev/null` otherwise
Change-type: patch
This make the LogBackend `log` method into an async method in
preparation for upcoming changes that will use backpressure from the
connection to delay logging coming from containers.
This also removes unnecessary imageId from the LogMessage type
Change-type: patch
Tests on GitHub started failing recently because of leftover images from
the state engine test suite. This fixes that issue to allow tests to
pass.
Change-type: patch
The host-config module exposes the following interfaces: get,
patch, and parse.
`get` gets host configuration such as redsocks proxy configuration
and hostname and returns it in an object of type HostConfiguration.
`patch` takes an object of type HostConfiguration or LegacyHostConfiguration
and updates the hostname and redsocks proxy configuration, optionally
forcing the patch through update locks.
`parse` takes a user input of unknown type and parses it into type
HostConfiguration or LegacyHostConfiguration for patching, erroring if
parse was unsuccessful.
LegacyHostConfiguration is a looser typing of the user input which does
not validate values of the five known proxy fields of type, ip, port,
username, and password. We should stop supporting it in the next
major Supervisor API release.
Change-type: minor
Signed-off-by: Christina Ying Wang <christina@balena.io>
Parses input from PATCH /v1/device/host-config into either
type HostConfiguration, or if LegacyHostConfiguration if
input is of an acceptable shape (for backwards compatibility).
Once input has been determined to be of type HostConfiguration,
we can easily extract ProxyConfig from the object for patching,
stringifying, and writing to redsocks.conf.
Change-type: minor
Signed-off-by: Christina Ying Wang <christina@balena.io>
`stringify` takes a RedsocksConfig, an internal object
representation of the redsocks.conf file, and transforms
it into a valid string that can be written to redsocks.conf.
Signed-off-by: Christina Ying Wang <christina@balena.io>
This is part of the host-config refactor which
enables easier encoding to / decoding from `redsocks.conf`.
Signed-off-by: Christina Ying Wang <christina@balena.io>
This goes in the direction of grouping modules by responsibility. The
api-binder module is the middleware between the device and the backend,
thus the target state polling code makes more sense there.
Change-type: patch
This reduces circular dependencies from 250 to 80 by ensuring that
modules that only require types do not import the full module with all
its dependencies.
Change-type: patch
This splits `App`, `Network`, `Service` and `Volume` which used to be
defined as classes into an interface and a class implementation that is
not exported. This will allow to work with just the types in some cases
and prevent circular dependencies when importing.
Change-type: patch
This bumps dockerode, removes resin-docker-build in favor of
@balena/compose, and updates docker-delta and docker-progress packages.
Change-type: patch
The Supervisor should only care whether a lockfile exists or
not. This also fixes an edge case where a user symlinked a lockfile
to a nonexistent file, causing the Supervisor to enter an error
loop as it was not able to `stat` the nonexistent file.
Change-type: patch
Signed-off-by: Christina Ying Wang <christina@balena.io>
This healthcheck fails when Supervisor memory usage is above a threshold
based on initial memory measurements after device state has settled.
Change-type: patch
Signed-off-by: Christina Ying Wang <christina@balena.io>
We don't want any Supervisor lockfiles to remain on the device
when a takeLock step fails because this would interfere with the user app.
Signed-off-by: Christina Ying Wang <christina@balena.io>
* Remove Supervisor lockfile cleanup SIGTERM listener
* Modify lockfile.getLocksTaken to read files from the filesystem
* Remove in-memory tracking of locks taken in favor of filesystem
* Require both `(resin-)updates.lock` to be locked with `nobody` UID
for service to count as locked by the Supervisor
Signed-off-by: Christina Ying Wang <christina@balena.io>
A takeLock step should be generated before any of the following steps:
* kill
* start
* stop
* updateMetadata
* restart
* handover
ALL services in an app will be locked for any of the above actions,
unless the action is generated through Supervisor API's
`POST /v2/applications/:appId/(start|stop|restart)-service` endpoints,
in which case only the target service will be locked.
A lock will be taken for a service before it starts by creating the
directory in /tmp before the Engine creates it through bind mounts.
Also, the commit simplifies the generation of service kill
steps from network/volume changes or removals.
Signed-off-by: Christina Ying Wang <christina@balena.io>
This commit changes a few things:
* Pass `force` to `takeLock` step directly. This allows us to remove
the `lockFn` used by app manager's action executors, setting takeLock
as the main interface to interact with the update lock module. Note
that this commit by itself will not pass tests, as no update locking
occurs where it once did. This will be amended in the next commit.
* Remove locking functions from doRestart & doPurge, as this is
the only area where skipLock is required.
* Remove `skipLock` interface, as it's redundant with the functionality
of `force`. The only time `skipLock` is true is in doRestart/doPurge,
as those API methods are already run within a lock function. We removed
the lock function which removes the need for skipLock, and in the next
commit we'll add locking as a composition step to replace the
functionality removed here.
* Remove some methods not in use, such as app manager's `stopAll`.
Signed-off-by: Christina Ying Wang <christina@balena.io>
This commit only implements the action that a takeLock step
results in. It does not add takeLock step generation logic
to the state funnel yet.
Signed-off-by: Christina Ying Wang <christina@balena.io>
releaseLock is a step that will be inferred if there are services
in target state, and if some of those services have locks taken by
the Supervisor.
The releaseLock composition step calls the method of the same name
in the updateLock module, which takes the exclusive process lock before
disposing all Supervisor lockfiles in the target appId.
This is half of the update lock incorporation into the state funnel, as
we also need to introduce a takeLock step which triggers during crucial
stages of device state transition.
Signed-off-by: Christina Ying Wang <christina@balena.io>
This also updates code to use the default import syntax instead of
`import * as` when the imported module exposes a default. This is needed
with the latest typescript version.
Change-type: patch
This updates balena lint to the latest version to enable eslint support
and unblock Typescript updates. This is a huge number of changes as the
linting rules are much more strict now, requiring modifiying most files
in the codebase. This commit also bumps the test dependency `rewire` as
that was interfering with the update of balena-lint
Change-type: patch
RPI firmware configuration allows repeating overlays to define
configurations on multiple devices. For instance, for configuring
multiple `ads` devices, `config.txt` needs to be setup this way
```
dtoverlay=ads1115,addr=0x48
dtoverlay=ads1115,addr=0x49
```
Before this change, the supervisor would interpret both lines as
belonging to the same overlay, preventing users from configuring multiple
devices, and leading to a loop when trying to apply configurations with
repeated overlays coming from the cloud side.
Change-type: minor
This commit completes the list of default / board-wide dtparams
to include some `baudrate` and `vc` i2c params.
Change-type: patch
Signed-off-by: Christina Ying Wang <christina@balena.io>
Previously, getBootConfig() of the config.txt backend was omitting
array configurations such as gpio settings, thus resulting in the SV
mistakenly assuming that boot config had not been applied, since gpio
would not be in current config.txt config but would be in target config.
This resulted in SV entering an infinite loop of attempting to apply the
gpio config when it wasn't necessary.
Change-type: patch
Signed-off-by: Christina Ying Wang <christina@balena.io>
While ordering is important in the RPI firmware configuration file (config.txt),
some dt params are by default considered part of the base dt overlay
if they are not used by other overlays.
Unfortunately the [list of dtparams](https://github.com/raspberrypi/firmware/blob/master/boot/overlays/README#L133)
is too long to add all of them as exceptions, but we can add the params
used in the default config.txt provided in OS images, to avoid reboots
when updating to this new supervisor and correctly parsing the
provisioning config.txt as variables.
While this addition handles most common scenarios, there is still a
chance a user may have use other base overlay dt params in the initial
config, in which case those will be interpreted according to the
relative ordering
Change-type: patch
Fixes behavior for release updates which removes a service in current state
and adds a new service in target state.
Change-type: patch
Closes: #2095
Signed-off-by: Christina Ying Wang <christina@balena.io>
