Solves https://github.com/coder/coder/issues/15096
This is a slight rework/refactor of the earlier PRs from @dannykopping
and @Emyrk:
- https://github.com/coder/coder/pull/15669
- https://github.com/coder/coder/pull/15684
- https://github.com/coder/coder/pull/17596
Rather than having a per-app CORS behaviour setting and additionally a
template level setting for ports, this PR adds a single template level
CORS behaviour setting that is then used by all apps/ports for
workspaces created from that template.
The main changes are in `proxy.go` and `request.go` to:
a) get the CORS behaviour setting from the template
b) have `HandleSubdomain` bypass the CORS middleware handler if the
selected behaviour is `passthru`
c) in `proxyWorkspaceApp`, do not modify the response if the selected
behaviour is `passthru`
<!-- This is an auto-generated comment: release notes by coderabbit.ai
-->
## Summary by CodeRabbit
* **New Features**
* Added support for configuring CORS behavior ("simple" or "passthru")
at the template level for all shared ports.
* Introduced a new "CORS Behavior" setting in the template creation and
settings forms.
* API endpoints and responses now include the optional `cors_behavior`
property for templates.
* Workspace apps and proxy now honor the specified CORS behavior,
enabling conditional CORS middleware application.
* Enhanced workspace app tests with comprehensive scenarios covering
CORS behaviors and authentication states.
* **Bug Fixes**
* None.
* **Documentation**
* Updated API and admin documentation to describe the new
`cors_behavior` property and its usage.
* Added examples and schema references for CORS behavior in relevant API
docs.
* **Tests**
* Extended automated tests to cover different CORS behavior scenarios
for templates and workspace apps.
* **Chores**
* Updated audit logging to track changes to the `cors_behavior` field on
templates.
<!-- end of auto-generated comment: release notes by coderabbit.ai -->
---------
Signed-off-by: Callum Styan <callumstyan@gmail.com>
## Description
This PR adds support for `description` and `icon` fields to
`template_version_presets`. These fields will allow displaying richer
information for presets in the UI, improving the user experience when
creating a workspace.
Both fields are optional, non-nullable, and default to empty strings.
## Changes
* Database migration with the addition of `description VARCHAR(128)` and
`icon VARCHAR(256)` columns to the `template_version_presets` table.
* Updated the `CreateWorkspacePageView` in the UI
Note: UI changes will be addressed in a separate PR
This PR introduces new build reason values to identify what type of
connection triggered a workspace build, helping to troubleshoot
workspace-related issues.
## Database Migration
Added migration 000349_extend_workspace_build_reason.up.sql that extends
the build_reason enum with new values:
```
dashboard, cli, ssh_connection, vscode_connection, jetbrains_connection
```
## Implementation
The build reason is specified through the API when creating new
workspace builds:
- Dashboard: Automatically sets reason to `dashboard` when users start
workspaces via the web interface
- CLI `start` command: Sets reason to `cli` when workspaces are started
via the command line
- CLI `ssh` command: Sets reason to ssh_connection when workspaces are
started due to SSH connections
- VS Code connections: Will be set to `vscode_connection` by the VS Code
extension through CLI hidden flag
(https://github.com/coder/vscode-coder/pull/550)
- JetBrains connections: Will be set to `jetbrains_connection` by the
Jetbrains Toolbox
(https://github.com/coder/coder-jetbrains-toolbox/pull/150) and
Jetbrains Gateway extension
(https://github.com/coder/jetbrains-coder/pull/561)
## UI Changes:
* Tooltip with reason in Build history
<img width="309" height="457" alt="image"
src="https://github.com/user-attachments/assets/bde8440b-bf3b-49a1-a244-ed7e8eb9763c"
/>
* Reason in Audit Logs Row tooltip
<img width="906" height="237" alt="image"
src="https://github.com/user-attachments/assets/ebbb62c7-cf07-4398-afbf-323c83fb6426"
/>
<img width="909" height="188" alt="image"
src="https://github.com/user-attachments/assets/1ddbab07-44bf-4dee-8867-b4e2cd56ae96"
/>
- Adds a query for counting managed agent workspace builds between two
timestamps
- The "Actual" field in the feature entitlement for managed agents is
now populated with the value read from the database
- The wsbuilder package now validates AI agent usage against the limit
when a license is installed
Closescoder/internal#777
The main goal of this PR is to remove Workspace Apps and Workspace Agents from the auto-generated audit log documentation, that incorrectly claims they are audited resources (no longer true with the addition of the connection log).
Though I believe we haven't touched any codepaths for returning audit logs, this PR also adds a test that ensures we continue to return *existing* connection, disconnect and open events correctly from the audit log API.
### Breaking change (changelog note):
>With new connection events appearing in the Connection Log, connection events older than 90 days will now be deleted from the Audit Log. If you require this legacy data, we recommend querying it from the REST API or making a backup of the database/these events before upgrading your Coder deployment. Please see the PR for details on what exactly will be deleted.
Of note is that there are currently no plans to delete connection events from the Connection Log.
### Context
This is the fifth PR for moving connection events out of the audit log.
In previous PRs:
- **New** connection logs have been routed to the `connection_logs` table. They will *not* appear in the audit log.
- These new connection logs are served from the new `/api/v2/connectionlog` endpoint.
In this PR:
- We'll now clean existing connection events out of the audit log, if they are older than 90 days, We do this in batches of 1000, every 10 minutes.
The criteria for deletion is simple:
```
WHERE
(
action = 'connect'
OR action = 'disconnect'
OR action = 'open'
OR action = 'close'
)
AND "time" < @before_time::timestamp with time zone
```
where `@before_time` is currently configured to 90 days in the past.
Future PRs:
- Write documentation for the endpoint / feature
This is the third PR for moving connection events out of the audit log.
This PR populates `count` on `ConnectionLogResponse` using a separate query, to preemptively mitigate the issue described in #17689. It's structurally identical to a portion of https://github.com/coder/coder/pull/18600, but for the connection log instead of the audit log.
Future PRs:
- Implement a table in the Web UI for viewing connection logs.
- Write a query to delete old events from the audit log, call it from dbpurge.
- Write documentation for the endpoint / feature
This is the second PR for moving connection events out of the audit log.
This PR:
- Adds the `/api/v2/connectionlog` endpoint
- Adds filtering for `GetAuthorizedConnectionLogsOffset` and thus the endpoint.
There's quite a few, but I was aiming for feature parity with the audit log.
1. `organization:<id|name>`
2. `workspace_owner:<username>`
3. `workspace_owner_email:<email>`
4. `type:<ssh|vscode|jetbrains|reconnecting_pty|workspace_app|port_forwarding>`
5. `username:<username>`
- Only includes web-based connection events (workspace apps, web port forwarding) as only those include user metadata.
6. `user_email:<email>`
7. `connected_after:<time>`
8. `connected_before:<time>`
9. `workspace_id:<id>`
10. `connection_id:<id>`
- If you have one snapshot of the connection log, and some sessions are ongoing in that snapshot, you could use this filter to check if they've been closed since.
11. `status:<connected|disconnected>`
- If `connected` only sessions with a null `close_time` are returned, if `disconnected`, only those with a non-null `close_time`. If filter is omitted, both are returned.
Future PRs:
- Populate `count` on `ConnectionLogResponse` using a seperate query (to preemptively mitigate the issue described in #17689)
- Implement a table in the Web UI for viewing connection logs.
- Write a query to delete old events from the audit log, call it from dbpurge.
- Write documentation for the endpoint / feature (including these filters)
### Breaking Change (changelog note):
> User connections to workspaces, and the opening of workspace apps or ports will no longer create entries in the audit log. Those events will now be included in the 'Connection Log'.
Please see the 'Connection Log' page in the dashboard, and the Connection Log [documentation](https://coder.com/docs/admin/monitoring/connection-logs) for details. Those with permission to view the Audit Log will also be able to view the Connection Log. The new Connection Log has the same licensing restrictions as the Audit Log, and requires a Premium Coder deployment.
### Context
This is the first PR of a few for moving connection events out of the audit log, and into a new database table and web UI page called the 'Connection Log'.
This PR:
- Creates the new table
- Adds and tests queries for inserting and reading, including reading with an RBAC filter.
- Implements the corresponding RBAC changes, such that anyone who can view the audit log can read from the table
- Implements, under the enterprise package, a `ConnectionLogger` abstraction to replace the `Auditor` abstraction for these logs. (No-op'd in AGPL, like the `Auditor`)
- Routes SSH connection and Workspace App events into the new `ConnectionLogger`
- Updates all existing tests to check the values of the `ConnectionLogger` instead of the `Auditor`.
Future PRs:
- Add filtering to the query
- Add an enterprise endpoint to query the new table
- Write a query to delete old events from the audit log, call it from dbpurge.
- Implement a table in the Web UI for viewing connection logs.
> [!NOTE]
> The PRs in this stack obviously won't be (completely) atomic. Whilst they'll each pass CI, the stack is designed to be merged all at once. I'm splitting them up for the sake of those reviewing, and so changes can be reviewed as early as possible. Despite this, it's really hard to make this PR any smaller than it already is. I'll be keeping it in draft until it's actually ready to merge.
Fixes https://github.com/coder/internal/issues/695
PostgreSQL tests are getting run in a non-postgres CI job because the tests don't get skipped if the `DB=` env is unset. This PR adds a skip for them.
They are flaking in the `test-go-race` CI job. They run fine in the `test-go-race-pg` job, which pre-creates the postgres server, so the flakiness is almost certainly related to spinning up the database server.
## Description
This PR updates the lifecycle executor to explicitly exclude prebuilt
workspaces from being considered for lifecycle operations such as
`autostart`, `autostop`, `dormancy`, `default TTL` and `failure TTL`.
Prebuilt workspaces (i.e., those owned by the prebuild system user) are
handled separately by the prebuild reconciliation loop. Including them
in the lifecycle executor could lead to unintended behavior such as
incorrect scheduling or state transitions.
## Changes
* Updated the lifecycle executor query
`GetWorkspacesEligibleForTransition` to exclude workspaces with
`owner_id = 'c42fdf75-3097-471c-8c33-fb52454d81c0'` (prebuilds).
* Added tests to verify prebuilt workspaces are not considered in:
* Autostop
* Autostart
* Default TTL
* Dormancy
* Failure TTL
Fixes: https://github.com/coder/coder/issues/18740
Related to: https://github.com/coder/coder/issues/18658
Closes#17791
This PR adds ability to cancel workspace builds that are in "pending"
status.
Breaking changes:
- CancelWorkspaceBuild method in codersdk now accepts an optional
request parameter
API:
- Added `expect_status` query parameter to the cancel workspace build
endpoint
- This parameter ensures the job hasn't changed state before canceling
- API returns `412 Precondition Failed` if the job is not in the
expected status
- Valid values: `running` or `pending`
- Wrapped the entire cancel method in a database transaction
UI:
- Added confirmation dialog to the `Cancel` button, since it's a
destructive operation
- Enabled cancel action for pending workspaces (`expect_status=pending`
is sent if workspace is in pending status)
---------
Co-authored-by: Dean Sheather <dean@deansheather.com>
# Remove unique constraint on OAuth2 provider app names
This PR removes the unique constraint on the `name` field in the `oauth2_provider_apps` table to comply with RFC 7591, which only requires unique client IDs, not unique client names.
Changes include:
- Removing the unique constraint from the database schema
- Adding migration files for both up and down migrations
- Removing the name uniqueness check in the in-memory database implementation
- Updating the unique constraint constants
Change-Id: Iae7a1a06546fbc8de541a52e291f8a4510d57e8a
Signed-off-by: Thomas Kosiewski <tk@coder.com>
# Implement OAuth2 Dynamic Client Registration (RFC 7591/7592)
This PR implements OAuth2 Dynamic Client Registration according to RFC 7591 and Client Configuration Management according to RFC 7592. These standards allow OAuth2 clients to register themselves programmatically with Coder as an authorization server.
Key changes include:
1. Added database schema extensions to support RFC 7591/7592 fields in the `oauth2_provider_apps` table
2. Implemented `/oauth2/register` endpoint for dynamic client registration (RFC 7591)
3. Added client configuration management endpoints (RFC 7592):
- GET/PUT/DELETE `/oauth2/clients/{client_id}`
- Registration access token validation middleware
4. Added comprehensive validation for OAuth2 client metadata:
- URI validation with support for custom schemes for native apps
- Grant type and response type validation
- Token endpoint authentication method validation
5. Enhanced developer documentation with:
- RFC compliance guidelines
- Testing best practices to avoid race conditions
- Systematic debugging approaches for OAuth2 implementations
The implementation follows security best practices from the RFCs, including proper token handling, secure defaults, and appropriate error responses. This enables third-party applications to integrate with Coder's OAuth2 provider capabilities programmatically.
This pull request implements RFC 8707, Resource Indicators for OAuth 2.0 (https://datatracker.ietf.org/doc/html/rfc8707), to enhance the security of our OAuth 2.0 provider.
This change enables proper audience validation and binds access tokens to their intended resource, which is crucial
for preventing token misuse in multi-tenant environments or deployments with multiple resource servers.
## Key Changes:
* Resource Parameter Support: Adds support for the resource parameter in both the authorization (`/oauth2/authorize`) and token (`/oauth2/token`) endpoints, allowing clients to specify the intended resource server.
* Audience Validation: Implements server-side validation to ensure that the resource parameter provided during the token exchange matches the one from the authorization request.
* API Middleware Enforcement: Introduces a new validation step in the API authentication middleware (`coderd/httpmw/apikey.go`) to verify that the audience of the access token matches the resource server being accessed.
* Database Schema Updates:
* Adds a `resource_uri` column to the `oauth2_provider_app_codes` table to store the resource requested during authorization.
* Adds an `audience` column to the `oauth2_provider_app_tokens` table to bind the issued token to a specific audience.
* Enhanced PKCE: Includes a minor enhancement to the PKCE implementation to protect against timing attacks.
* Comprehensive Testing: Adds extensive new tests to `coderd/oauth2_test.go` to cover various RFC 8707 scenarios, including valid flows, mismatched resources, and refresh token validation.
## How it Works:
1. An OAuth2 client specifies the target resource (e.g., https://coder.example.com) using the resource parameter in the authorization request.
2. The authorization server stores this resource URI with the authorization code.
3. During the token exchange, the server validates that the client provides the same resource parameter.
4. The server issues an access token with an audience claim set to the validated resource URI.
5. When the client uses the access token to call an API endpoint, the middleware verifies that the token's audience matches the URL of the Coder deployment, rejecting any tokens intended for a different resource.
This ensures that a token issued for one Coder deployment cannot be used to access another, significantly strengthening our authentication security.
---
Change-Id: I3924cb2139e837e3ac0b0bd40a5aeb59637ebc1b
Signed-off-by: Thomas Kosiewski <tk@coder.com>
This PR provides two commands:
* `coder prebuilds pause`
* `coder prebuilds resume`
These allow the suspension of all prebuilds activity, intended for use
if prebuilds are misbehaving.
## Summary
This PR implements critical MCP OAuth2 compliance features for Coder's authorization server, adding PKCE support, resource parameter handling, and OAuth2 server metadata discovery. This brings Coder's OAuth2 implementation significantly closer to production readiness for MCP (Model Context Protocol)
integrations.
## What's Added
### OAuth2 Authorization Server Metadata (RFC 8414)
- Add `/.well-known/oauth-authorization-server` endpoint for automatic client discovery
- Returns standardized metadata including supported grant types, response types, and PKCE methods
- Essential for MCP client compatibility and OAuth2 standards compliance
### PKCE Support (RFC 7636)
- Implement Proof Key for Code Exchange with S256 challenge method
- Add `code_challenge` and `code_challenge_method` parameters to authorization flow
- Add `code_verifier` validation in token exchange
- Provides enhanced security for public clients (mobile apps, CLIs)
### Resource Parameter Support (RFC 8707)
- Add `resource` parameter to authorization and token endpoints
- Store resource URI and bind tokens to specific audiences
- Critical for MCP's resource-bound token model
### Enhanced OAuth2 Error Handling
- Add OAuth2-compliant error responses with proper error codes
- Use standard error format: `{"error": "code", "error_description": "details"}`
- Improve error consistency across OAuth2 endpoints
### Authorization UI Improvements
- Fix authorization flow to use POST-based consent instead of GET redirects
- Remove dependency on referer headers for security decisions
- Improve CSRF protection with proper state parameter validation
## Why This Matters
**For MCP Integration:** MCP requires OAuth2 authorization servers to support PKCE, resource parameters, and metadata discovery. Without these features, MCP clients cannot securely authenticate with Coder.
**For Security:** PKCE prevents authorization code interception attacks, especially critical for public clients. Resource binding ensures tokens are only valid for intended services.
**For Standards Compliance:** These are widely adopted OAuth2 extensions that improve interoperability with modern OAuth2 clients.
## Database Changes
- **Migration 000343:** Adds `code_challenge`, `code_challenge_method`, `resource_uri` to `oauth2_provider_app_codes`
- **Migration 000343:** Adds `audience` field to `oauth2_provider_app_tokens` for resource binding
- **Audit Updates:** New OAuth2 fields properly tracked in audit system
- **Backward Compatibility:** All changes maintain compatibility with existing OAuth2 flows
## Test Coverage
- Comprehensive PKCE test suite in `coderd/identityprovider/pkce_test.go`
- OAuth2 metadata endpoint tests in `coderd/oauth2_metadata_test.go`
- Integration tests covering PKCE + resource parameter combinations
- Negative tests for invalid PKCE verifiers and malformed requests
## Testing Instructions
```bash
# Run the comprehensive OAuth2 test suite
./scripts/oauth2/test-mcp-oauth2.sh
Manual Testing with Interactive Server
# Start Coder in development mode
./scripts/develop.sh
# In another terminal, set up test app and run interactive flow
eval $(./scripts/oauth2/setup-test-app.sh)
./scripts/oauth2/test-manual-flow.sh
# Opens browser with OAuth2 flow, handles callback automatically
# Clean up when done
./scripts/oauth2/cleanup-test-app.sh
Individual Component Testing
# Test metadata endpoint
curl -s http://localhost:3000/.well-known/oauth-authorization-server | jq .
# Test PKCE generation
./scripts/oauth2/generate-pkce.sh
# Run specific test suites
go test -v ./coderd/identityprovider -run TestVerifyPKCE
go test -v ./coderd -run TestOAuth2AuthorizationServerMetadata
```
### Breaking Changes
None. All changes maintain backward compatibility with existing OAuth2 flows.
---
Change-Id: Ifbd0d9a543d545f9f56ecaa77ff2238542ff954a
Signed-off-by: Thomas Kosiewski <tk@coder.com>
Closes#17689
This PR optimizes the audit logs query performance by extracting the
count operation into a separate query and replacing the OR-based
workspace_builds with conditional joins.
## Query changes
* Extracted count query to separate one
* Replaced single `workspace_builds` join with OR conditions with
separate conditional joins
* Added conditional joins
* `wb_build` for workspace_build audit logs (which is a direct lookup)
* `wb_workspace` for workspace create audit logs (via workspace)
Optimized AuditLogsOffset query:
https://explain.dalibo.com/plan/4g1hbedg4a564bg8
New CountAuditLogs query:
https://explain.dalibo.com/plan/ga2fbcecb9efbce3
Fixes https://github.com/coder/internal/issues/695
Retries initial connection to postgres in testing up to 3 seconds if we
see "reset by peer", which probably means that some other test proc just
started the container.
---------
Co-authored-by: Hugo Dutka <hugo@coder.com>
## Description
Follow-up from PR https://github.com/coder/coder/pull/18333
Related with:
https://github.com/coder/coder/pull/18333#discussion_r2159300881
This changes the authorization logic to first try the normal workspace
authorization check, and only if the resource is a prebuilt workspace,
fall back to the prebuilt workspace authorization check. Since prebuilt
workspaces are a subset of workspaces, the normal workspace check is
more likely to succeed. This is a small optimization to reduce
unnecessary prebuilt authorization calls.
`wsbuilder` hits the file cache when running validation. This solution is imperfect, but by first sorting workspaces by their template version id, the cache hit rate should improve.
Add an endpoint to fetch AI task prompts for multiple workspace builds
at the same time. A prompt is the value of the "AI Prompt" workspace
build parameter. On main, the only way our API allows fetching workspace
build parameters is by using the `/workspacebuilds/$build_id/parameters`
endpoint, requiring a separate API call for every build.
The Tasks dashboard fetches Task workspaces in order to show them in a
list, and then needs to fetch the value of the `AI Prompt` parameter for
every task workspace (using its latest build id), requiring an
additional API call for each list item. This endpoint will allow the
dashboard to make just 2 calls to render the list: one to fetch task
workspaces, the other to fetch prompts.
<img width="1512" alt="Screenshot 2025-06-20 at 11 33 11"
src="https://github.com/user-attachments/assets/92899999-e922-44c5-8325-b4b23a0d2bff"
/>
Related to https://github.com/coder/internal/issues/660.
Use richer `previewtypes.Parameter` for `wsbuilder`. This is a pre-requirement to adding dynamic parameter validation.
The richer type contains more information than the `db` parameter, so the conversion is lossless.
Alternate fix for https://github.com/coder/coder/issues/18080
Modifies wsbuilder to complete the provisioner job and mark the
workspace as deleted if it is clear that no provisioner will be able to
pick up the delete build.
This has a significant advantage of not deviating too much from the
current semantics of `POST /api/v2/workspacebuilds`.
https://github.com/coder/coder/pull/18460 ends up returning a 204 on
orphan delete due to no build being created.
Downside is that we have to duplicate some responsibilities of
provisionerdserver in wsbuilder.
There is a slight gotcha to this approach though: if you stop a
provisioner and then immediately try to orphan-delete, the job will
still be created because of the provisioner heartbeat interval. However
you can cancel it and try again.
"Idle" is more accurate than "complete" since:
1. AgentAPI only knows if the screen is active; it has no way of knowing
if the task is complete.
2. The LLM might be done with its current prompt, but that does not mean
the task is complete either (it likely needs refinement).
The "complete" state will be reserved for future definition.
Additionally, in the case where the screen goes idle but the LLM never
reported a status update, we can get an idle icon without a message, and
it looks kinda janky in the UI so if there is no message I display the
state text.
Closes https://github.com/coder/internal/issues/699
## Description
This PR adds support for deleting prebuilt workspaces via the
authorization layer. It introduces special-case handling to ensure that
`prebuilt_workspace` permissions are evaluated when attempting to delete
a prebuilt workspace, falling back to the standard `workspace` resource
as needed.
Prebuilt workspaces are a subset of workspaces, identified by having
`owner_id` set to `PREBUILD_SYSTEM_USER`.
This means:
* A user with `prebuilt_workspace.delete` permission is allowed to
**delete only prebuilt workspaces**.
* A user with `workspace.delete` permission can **delete both normal and
prebuilt workspaces**.
⚠️ This implementation is scoped to **deletion operations only**. No
other operations are currently supported for the `prebuilt_workspace`
resource.
To delete a workspace, users must have the following permissions:
* `workspace.read`: to read the current workspace state
* `update`: to modify workspace metadata and related resources during
deletion (e.g., updating the `deleted` field in the database)
* `delete`: to perform the actual deletion of the workspace
## Changes
* Introduced `authorizeWorkspace()` helper to handle prebuilt workspace
authorization logic.
* Ensured both `prebuilt_workspace` and `workspace` permissions are
checked.
* Added comments to clarify the current behavior and limitations.
* Moved `SystemUserID` constant from the `prebuilds` package to the
`database` package `PrebuildsSystemUserID` to resolve an import cycle
(commit
https://github.com/coder/coder/pull/18333/commits/f24e4ab4b6f0a56726fd04be2d7302c9fdb52d53).
* Update middleware `ExtractOrganizationMember` to include system user
members.
Closes https://github.com/coder/internal/issues/312
Depends on https://github.com/coder/terraform-provider-coder/pull/408
This PR adds support for defining an **autoscaling block** for
prebuilds, allowing number of desired instances to scale dynamically
based on a schedule.
Example usage:
```
data "coder_workspace_preset" "us-nix" {
...
prebuilds = {
instances = 0 # default to 0 instances
scheduling = {
timezone = "UTC" # a single timezone is used for simplicity
# Scale to 3 instances during the work week
schedule {
cron = "* 8-18 * * 1-5" # from 8AM–6:59PM, Mon–Fri, UTC
instances = 3 # scale to 3 instances
}
# Scale to 1 instance on Saturdays for urgent support queries
schedule {
cron = "* 8-14 * * 6" # from 8AM–2:59PM, Sat, UTC
instances = 1 # scale to 1 instance
}
}
}
}
```
### Behavior
- Multiple `schedule` blocks per `prebuilds` block are supported.
- If the current time matches any defined autoscaling schedule, the
corresponding number of instances is used.
- If no schedule matches, the **default instance count**
(`prebuilds.instances`) is used as a fallback.
### Why
This feature allows prebuild instance capacity to adapt to predictable
usage patterns, such as:
- Scaling up during business hours or high-demand periods
- Reducing capacity during off-hours to save resources
### Cron specification
The cron specification is interpreted as a **continuous time range.**
For example, the expression:
```
* 9-18 * * 1-5
```
is intended to represent a continuous range from **09:00 to 18:59**,
Monday through Friday.
However, due to minor implementation imprecision, it is currently
interpreted as a range from **08:59:00 to 18:58:59**, Monday through
Friday.
This slight discrepancy arises because the evaluation is based on
whether a specific **point in time** falls within the range, using the
`github.com/coder/coder/v2/coderd/schedule/cron` library, which performs
per-minute matching rather than strict range evaluation.
---------
Co-authored-by: Danny Kopping <danny@coder.com>
Deletion of data is uncommon in our database, so the introduction of sub agents
and the deletion of them introduced issues with foreign key assumptions, as can
be seen in coder/internal#685. We could have only addressed the specific case by
allowing cascade deletion of stats as well as handling in the stats collector,
but it's unclear how many more such edge-cases we could run into.
In this change, we mark the rows as deleted via boolean instead, and filter them
out in all relevant queries.
Fixescoder/internal#685
Callum Styan