Commit Graph

16 Commits

Author SHA1 Message Date
Alejandro Pedraza 8ac5360041
Extract from public-api all the Prometheus dependencies, and moves things into a new viz component 'linkerd-metrics-api' (#5560)
* Protobuf changes:
- Moved `healthcheck.proto` back from viz to `proto/common` as it remains being used by the main `healthcheck.go` library (it was moved to viz by #5510).
- Extracted from `viz.proto` the IP-related types and put them in `/controller/gen/common/net` to be used by both the public and the viz APIs.

* Added chart templates for new viz linkerd-metrics-api pod

* Spin-off viz healthcheck:
- Created `viz/pkg/healthcheck/healthcheck.go` that wraps the original `pkg/healthcheck/healthcheck.go` while adding the `vizNamespace` and `vizAPIClient` fields which were removed from the core `healthcheck`. That way the core healthcheck doesn't have any dependencies on viz, and viz' healthcheck can now be used to retrieve viz api clients.
- The core and viz healthcheck libs are now abstracted out via the new `healthcheck.Runner` interface.
- Refactored the data plane checks so they don't rely on calling `ListPods`
- The checks in `viz/cmd/check.go` have been moved to `viz/pkg/healthcheck/healthcheck.go` as well, so `check.go`'s sole responsibility is dealing with command business. This command also now retrieves its viz api client through viz' healthcheck.

* Removed linkerd-controller dependency on Prometheus:
- Removed the `global.prometheusUrl` config in the core values.yml.
- Leave the Heartbeat's `-prometheus` flag hard-coded temporarily. TO-DO: have it automatically discover viz and pull Prometheus' endpoint (#5352).

* Moved observability gRPC from linkerd-controller to viz:
- Created a new gRPC server under `viz/metrics-api` moving prometheus-dependent functions out of the core gRPC server and into it (same thing for the accompaigning http server).
- Did the same for the `PublicAPIClient` (now called just `Client`) interface. The `VizAPIClient` interface disappears as it's enough to just rely on the viz `ApiClient` protobuf type.
- Moved the other files implementing the rest of the gRPC functions from `controller/api/public` to `viz/metrics-api` (`edge.go`, `stat_summary.go`, etc.).
- Also simplified some type names to avoid stuttering.

* Added linkerd-metrics-api bootstrap files. At the same time, we strip out of the public-api's `main.go` file the prometheus parameters and other no longer relevant bits.

* linkerd-web updates: it requires connecting with both the public-api and the viz api, so both addresses (and the viz namespace) are now provided as parameters to the container.

* CLI updates and other minor things:
- Changes to command files under `cli/cmd`:
  - Updated `endpoints.go` according to new API interface name.
  - Updated `version.go`, `dashboard` and `uninstall.go` to pull the viz namespace dynamically.
- Changes to command files under `viz/cmd`:
  - `edges.go`, `routes.go`, `stat.go` and `top.go`: point to dependencies that were moved from public-api to viz.
- Other changes to have tests pass:
  - Added `metrics-api` to list of docker images to build in actions workflows.
  - In `bin/fmt` exclude protobuf generated files instead of entire directories because directories could contain both generated and non-generated code (case in point: `viz/metrics-api`).

* Add retry to 'tap API service is running' check

* mc check shouldn't err when viz is not available. Also properly set the log in multicluster/cmd/root.go so that it properly displays messages when --verbose is used
2021-01-21 18:26:38 -05:00
Alejandro Pedraza f3b1ebfa99
Separate observability API (#5510)
* Separate observability API

Closes #5312

This is a preliminary step towards moving all the observability API into `/viz`, by first moving its protobuf into `viz/metrics-api`. This should facilitate review as the go files are not moved yet, which will happen in a followup PR. There are no user-facing changes here.

- Moved `proto/common/healthcheck.proto` to `viz/metrics-api/proto/healthcheck.prot`
- Moved the contents of `proto/public.proto` to `viz/metrics-api/proto/viz.proto` except for the `Version` Stuff.
- Merged `proto/controller/tap.proto` into `viz/metrics-api/proto/viz.proto`
- `grpc_server.go` now temporarily exposes `PublicAPIServer` and `VizAPIServer` interfaces to separate both APIs. This will get properly split in a followup.
- The web server provides handlers for both interfaces.
- `cli/cmd/public_api.go` and `pkg/healthcheck/healthcheck.go` temporarily now have methods to access both APIs.
- Most of the CLI commands will use the Viz API, except for `version`.

The other changes in the go files are just changes in the imports to point to the new protobufs.

Other minor changes:
- Removed `git add controller/gen` from `bin/protoc-go.sh`
2021-01-13 14:34:54 -05:00
Tarun Pothulapati 4c3d002501
viz: move sub-cmds using viz extension under viz cmd (#5485)
* viz: move sub-cmds using viz extension under viz cmd

Fixes #5327 , #5524 

This branch moves the following commands, under the `linkerd viz`
cmd as they use the viz extension to perform the job.

- dashboard
- edges
- routes
- stat
- tap
- top

This also creates a new pkg `public-api` which fecilitates
interaction and communication with public-api to be used
across extensions.

Signed-off-by: Tarun Pothulapati <tarunpothulapati@outlook.com>
Co-authored-by: Alex Leong <alex@buoyant.io>
2021-01-13 12:11:25 +05:30
Tarun Pothulapati d0caaa86c4
Bump k8s client-go to v0.19.2 (#5002)
Fixes #4191 #4993

This bumps Kubernetes client-go to the latest v0.19.2 (We had to switch directly to 1.19 because of this issue). Bumping to v0.19.2 required upgrading to smi-sdk-go v0.4.1. This also depends on linkerd/stern#5

This consists of the following changes:

- Fix ./bin/update-codegen.sh by adding the template path to the gen commands, as it is needed after we moved to GOMOD.
- Bump all k8s related dependencies to v0.19.2
- Generate CRD types, client code using the latest k8s.io/code-generator
- Use context.Context as the first argument, in all code paths that touch the k8s client-go interface

Signed-off-by: Tarun Pothulapati <tarunpothulapati@outlook.com>
2020-09-28 12:45:18 -05:00
Alex Leong e962bf1968
Improve proxy version diagnostics (#4244)
It can be difficult to know which versions of the proxy are running in your cluster, especially when you have pods running at multiple different proxy versions.

We add two pieces of CLI functionality to assist with this:

The `linkerd check --proxy` command will now list all data plane pods which are not up-to-date rather than just printing the first one it encounters:

```
‼ data plane is up-to-date
    Some data plane pods are not running the current version:
	* default/books-84958fff5-95j75 (git-ca760bdd)
	* default/authors-57c6dc9b47-djldq (git-ca760bdd)
	* default/traffic-85f58ccb66-vxr49 (git-ca760bdd)
	* default/release-name-smi-metrics-899c68958-5ctpz (git-ca760bdd)
	* default/webapp-6975dc796f-2ngh4 (git-ca760bdd)
	* default/webapp-6975dc796f-z4bc4 (git-ca760bdd)
	* emojivoto/voting-54ffc5787d-wj6cp (git-ca760bdd)
	* emojivoto/vote-bot-7b54d6999b-57srw (git-ca760bdd)
	* emojivoto/emoji-5cb99f85d8-5bhvm (git-ca760bdd)
	* emojivoto/web-7988674b8b-zfvvm (git-ca760bdd)
	* default/webapp-6975dc796f-d2fbc (git-ca760bdd)
	* default/curl (git-7f6bbc73)
    see https://linkerd.io/checks/#l5d-data-plane-version for hints
```

The `linkerd version` command now supports a `--proxy` flag which will list all proxy versions running in the cluster and the number of pods running each version:

```
linkerd version --proxy
Client version: dev-7b9d475f-alex
Server version: edge-20.4.1
Proxy versions:
	edge-20.4.1 (10 pods)
	git-ca760bdd (11 pods)
	git-7f6bbc73 (1 pods)
```

Signed-off-by: Alex Leong <alex@buoyant.io>
2020-04-16 11:28:19 -07:00
Jack Price f758a9e428 Use port-forwarding for linkerd CLIs (#2757)
Private k8s clusters, such as the private GKE clusters offered by Google
Cloud, cannot be reached through the current API proxy method.

This commit uses the port forwarding feature already developed.

Also modify dashboard command to not fall back to ephemeral port.

Signed-off-by: Jack Price <jackprice@outlook.com>
2019-05-02 14:41:26 +02:00
Oliver Gould f7435800da
lint: Enable scopelint (#2364)
[scopelint][scopelint] detects a nasty reference-scoping issue in loops.

[scopelint]: https://github.com/kyoh86/scopelint
2019-02-24 08:59:51 -08:00
Andrew Seigner c9ac77cd7c
Introduce version consistency checks (#2130)
Version checks were not validating that the cli version matched the
control plane or data plane versions.

Add checks via the `linkerd check` command to validate the cli is
running the same version as the control and data plane.

Also add types around `channel-version` string parsing and matching. A
consequence being that during development `version.Version` changes from
`undefined` to `dev-undefined`.

Fixes #2076

Depends on linkerd/website#101

Signed-off-by: Andrew Seigner <siggy@buoyant.io>
2019-01-23 16:54:43 -08:00
Radu M 07cbfe2725 Fix most golint issues that are not comment related (#1982)
Signed-off-by: Radu Matei <radu@radu-matei.com>
2018-12-20 10:37:47 -08:00
Kevin Lingerfelt e5cce1abaf
Rename CLI from conduit to linkerd (#1312)
* Rename CLI binary
* Update integration tests for new binary name
* Rename --conduit-namespace flag, change default ns
* Rename occurrences of conduit in rest of CLI
* Rename inject and install components
* Remove conduit occurrences in docker files
* Additional miscellaneous cleanup
* Move protobuf definitions to linkerd2 package
* Rename conduit.io labels to use linkerd.io
* Rename conduit-managed segment to linkerd-managed
* Fix conduit references in web project

Signed-off-by: Kevin Lingerfelt <kl@buoyant.io>
2018-07-12 17:14:07 -07:00
Oliver Gould 941cad4a9c
Migrate build infrastructure to linkerd2 (#1298)
This PR begins to migrate Conduit to Linkerd2:
* The proxy has been completely removed from this repo, and is now located at
  github.com/linkerd/linkerd2-proxy.
* A `Dockerfile-proxy` has been added to fetch the most-recently published proxy
  binary from build.l5d.io.
* Proxy-specific protobuf bindings have been moved to
  github.com/linkerd/linkerd2-proxy-api.
* All docker images now use the gcr.io/linkerd-io registry.
* `inject` now uses `LINKERD2_PROXY_` environment variables
* Go paths have been updated to reflect the new (future) repo location.
2018-07-09 15:38:38 -07:00
Kevin Lingerfelt 4a76c6448b
Update cli subcommands to print errors when encountered (#221)
Signed-off-by: Kevin Lingerfelt <kl@buoyant.io>
2018-01-29 11:28:19 -08:00
Kevin Lingerfelt 7399df83f1
Set conduit version to match conduit docker tags (#208)
* Set conduit version to match conduit docker tags

Signed-off-by: Kevin Lingerfelt <kl@buoyant.io>

* Remove --skip-inbound-ports for emojivoto

Signed-off-by: Kevin Lingerfelt <kl@buoyant.io>

* Rename git_sha => git_sha_head

Signed-off-by: Kevin Lingerfelt <kl@buoyant.io>

* Switch to using the go linker for setting the version

Signed-off-by: Kevin Lingerfelt <kl@buoyant.io>

* Log conduit version when go servers start

Signed-off-by: Kevin Lingerfelt <kl@buoyant.io>

* Cleanup conduit script

Signed-off-by: Kevin Lingerfelt <kl@buoyant.io>

* Add --short flag to head sha command

Signed-off-by: Kevin Lingerfelt <kl@buoyant.io>

* Set CONDUIT_VERSION in docker-compose env

Signed-off-by: Kevin Lingerfelt <kl@buoyant.io>
2018-01-26 11:43:45 -08:00
Phil Calçado e328db7e87
Adds conduit-api check for status command (#140)
* Abstract Conduit API client from protobuf interface to add new features

Signed-off-by: Phil Calcado <phil@buoyant.io>

* Consolidate mock api clients

Signed-off-by: Phil Calcado <phil@buoyant.io>

* Add simple implementation of healthcheck for conduit api

Signed-off-by: Phil Calcado <phil@buoyant.io>

* Change NextSteps to FriendlyMessageToUser

Signed-off-by: Phil Calcado <phil@buoyant.io>

* Add grpc check for status on the client

Signed-off-by: Phil Calcado <phil@buoyant.io>

* Add simple server-side check for Conduit API

Signed-off-by: Phil Calcado <phil@buoyant.io>

* Fix feedback from PR

Signed-off-by: Phil Calcado <phil@buoyant.io>
2018-01-12 15:35:22 -05:00
Kevin Lingerfelt 1dc1c00a2a
Upgrade k8s.io/client-go to v6.0.0 (#122)
* Sort imports

Signed-off-by: Kevin Lingerfelt <kl@buoyant.io>

* Upgrade k8s.io/client-go to v6.0.0

Signed-off-by: Kevin Lingerfelt <kl@buoyant.io>

* Make k8s store initialization blocking with timeout

Signed-off-by: Kevin Lingerfelt <kl@buoyant.io>
2018-01-11 10:22:37 -08:00
Phil Calçado 31e9846f62
Make several CLI commands testable (#86)
* Add func to rsolve kubectl-like names to canonical names

Signed-off-by: Phil Calcado <phil@buoyant.io>

* Refactor API instantiation

Signed-off-by: Phil Calcado <phil@buoyant.io>

* Make version command testable

Signed-off-by: Phil Calcado <phil@buoyant.io>

* Make get command testable

Signed-off-by: Phil Calcado <phil@buoyant.io>

* Add tests for api utils

Signed-off-by: Phil Calcado <phil@buoyant.io>

* Make stat command testable

Signed-off-by: Phil Calcado <phil@buoyant.io>

* Make tap command testablë

Signed-off-by: Phil Calcado <phil@buoyant.io>
2017-12-27 14:10:41 -05:00