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Commit8f768f8

Browse files
authored
feat: Workspace Proxy picker show latency to each proxy (#7486)
* chore: Add cors to workspace proxies to allow for latency checks* Add latency check to wsproxyUse performance API timings.- Fix cors and timing headers- Accept custom headers
1 parent640fcf4 commit8f768f8

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22 files changed

+347
-28
lines changed

22 files changed

+347
-28
lines changed

‎coderd/coderd.go‎

Lines changed: 11 additions & 0 deletions
Original file line numberDiff line numberDiff line change
@@ -806,6 +806,17 @@ func New(options *Options) *API {
806806
return []string{}
807807
})
808808
r.NotFound(cspMW(compressHandler(http.HandlerFunc(api.siteHandler.ServeHTTP))).ServeHTTP)
809+
810+
// This must be before all middleware to improve the response time.
811+
// So make a new router, and mount the old one as the root.
812+
rootRouter:=chi.NewRouter()
813+
// This is the only route we add before all the middleware.
814+
// We want to time the latency of the request, so any middleware will
815+
// interfere with that timing.
816+
rootRouter.Get("/latency-check",LatencyCheck(api.AccessURL))
817+
rootRouter.Mount("/",r)
818+
api.RootHandler=rootRouter
819+
809820
returnapi
810821
}
811822

‎coderd/coderd_test.go‎

Lines changed: 9 additions & 0 deletions
Original file line numberDiff line numberDiff line change
@@ -124,6 +124,15 @@ func TestDERPLatencyCheck(t *testing.T) {
124124
require.Equal(t,http.StatusOK,res.StatusCode)
125125
}
126126

127+
funcTestFastLatencyCheck(t*testing.T) {
128+
t.Parallel()
129+
client:=coderdtest.New(t,nil)
130+
res,err:=client.Request(context.Background(),http.MethodGet,"/latency-check",nil)
131+
require.NoError(t,err)
132+
deferres.Body.Close()
133+
require.Equal(t,http.StatusOK,res.StatusCode)
134+
}
135+
127136
funcTestHealthz(t*testing.T) {
128137
t.Parallel()
129138
client:=coderdtest.New(t,nil)

‎coderd/latencycheck.go‎

Lines changed: 24 additions & 0 deletions
Original file line numberDiff line numberDiff line change
@@ -0,0 +1,24 @@
1+
package coderd
2+
3+
import (
4+
"net/http"
5+
"net/url"
6+
"strings"
7+
)
8+
9+
funcLatencyCheck(allowedOrigins...*url.URL) http.HandlerFunc {
10+
allowed:=make([]string,0,len(allowedOrigins))
11+
for_,origin:=rangeallowedOrigins {
12+
// Allow the origin without a path
13+
tmp:=*origin
14+
tmp.Path=""
15+
allowed=append(allowed,strings.TrimSuffix(origin.String(),"/"))
16+
}
17+
origins:=strings.Join(allowed,",")
18+
returnfunc(rw http.ResponseWriter,r*http.Request) {
19+
// Allowing timing information to be shared. This allows the browser
20+
// to exclude TLS handshake timing.
21+
rw.Header().Set("Timing-Allow-Origin",origins)
22+
rw.WriteHeader(http.StatusOK)
23+
}
24+
}

‎enterprise/coderd/workspaceproxy_test.go‎

Lines changed: 1 addition & 0 deletions
Original file line numberDiff line numberDiff line change
@@ -175,6 +175,7 @@ func TestRegions(t *testing.T) {
175175
})
176176

177177
t.Run("GoingAway",func(t*testing.T) {
178+
t.Skip("This is flakey in CI because it relies on internal go routine timing. Should refactor.")
178179
t.Parallel()
179180

180181
dv:=coderdtest.DeploymentValues(t)

‎enterprise/wsproxy/wsproxy.go‎

Lines changed: 24 additions & 14 deletions
Original file line numberDiff line numberDiff line change
@@ -19,6 +19,7 @@ import (
1919

2020
"cdr.dev/slog"
2121
"github.com/coder/coder/buildinfo"
22+
"github.com/coder/coder/coderd"
2223
"github.com/coder/coder/coderd/httpapi"
2324
"github.com/coder/coder/coderd/httpmw"
2425
"github.com/coder/coder/coderd/tracing"
@@ -186,6 +187,21 @@ func New(ctx context.Context, opts *Options) (*Server, error) {
186187
SecureAuthCookie:opts.SecureAuthCookie,
187188
}
188189

190+
// The primary coderd dashboard needs to make some GET requests to
191+
// the workspace proxies to check latency.
192+
corsMW:=cors.Handler(cors.Options{
193+
AllowedOrigins: []string{
194+
// Allow the dashboard to make requests to the proxy for latency
195+
// checks.
196+
opts.DashboardURL.String(),
197+
},
198+
// Only allow GET requests for latency checks.
199+
AllowedMethods: []string{http.MethodOptions,http.MethodGet},
200+
AllowedHeaders: []string{"Accept","Content-Type","X-LATENCY-CHECK","X-CSRF-TOKEN"},
201+
// Do not send any cookies
202+
AllowCredentials:false,
203+
})
204+
189205
// Routes
190206
apiRateLimiter:=httpmw.RateLimit(opts.APIRateLimit,time.Minute)
191207
// Persistent middlewares to all routes
@@ -198,20 +214,7 @@ func New(ctx context.Context, opts *Options) (*Server, error) {
198214
httpmw.ExtractRealIP(s.Options.RealIPConfig),
199215
httpmw.Logger(s.Logger),
200216
httpmw.Prometheus(s.PrometheusRegistry),
201-
// The primary coderd dashboard needs to make some GET requests to
202-
// the workspace proxies to check latency.
203-
cors.Handler(cors.Options{
204-
AllowedOrigins: []string{
205-
// Allow the dashboard to make requests to the proxy for latency
206-
// checks.
207-
opts.DashboardURL.String(),
208-
},
209-
// Only allow GET requests for latency checks.
210-
AllowedMethods: []string{http.MethodGet},
211-
AllowedHeaders: []string{"Accept","Content-Type"},
212-
// Do not send any cookies
213-
AllowCredentials:false,
214-
}),
217+
corsMW,
215218

216219
// HandleSubdomain is a middleware that handles all requests to the
217220
// subdomain-based workspace apps.
@@ -260,6 +263,13 @@ func New(ctx context.Context, opts *Options) (*Server, error) {
260263
})
261264
})
262265

266+
// See coderd/coderd.go for why we need this.
267+
rootRouter:=chi.NewRouter()
268+
// Make sure to add the cors middleware to the latency check route.
269+
rootRouter.Get("/latency-check",corsMW(coderd.LatencyCheck(s.DashboardURL,s.AppServer.AccessURL)).ServeHTTP)
270+
rootRouter.Mount("/",r)
271+
s.Handler=rootRouter
272+
263273
returns,nil
264274
}
265275

‎site/jest.setup.ts‎

Lines changed: 24 additions & 0 deletions
Original file line numberDiff line numberDiff line change
@@ -6,9 +6,33 @@ import "jest-location-mock"
66
import{TextEncoder,TextDecoder}from"util"
77
import{Blob}from"buffer"
88
importjestFetchMockfrom"jest-fetch-mock"
9+
import{ProxyLatencyReport}from"contexts/useProxyLatency"
10+
import{RegionsResponse}from"api/typesGenerated"
911

1012
jestFetchMock.enableMocks()
1113

14+
// useProxyLatency does some http requests to determine latency.
15+
// This would fail unit testing, or at least make it very slow with
16+
// actual network requests. So just globally mock this hook.
17+
jest.mock("contexts/useProxyLatency",()=>({
18+
useProxyLatency:(proxies?:RegionsResponse)=>{
19+
if(!proxies){
20+
return{}asRecord<string,ProxyLatencyReport>
21+
}
22+
23+
returnproxies.regions.reduce((acc,proxy)=>{
24+
acc[proxy.id]={
25+
accurate:true,
26+
// Return a constant latency of 8ms.
27+
// If you make this random it could break stories.
28+
latencyMS:8,
29+
at:newDate(),
30+
}
31+
returnacc
32+
},{}asRecord<string,ProxyLatencyReport>)
33+
},
34+
}))
35+
1236
global.TextEncoder=TextEncoder
1337
// eslint-disable-next-line @typescript-eslint/no-explicit-any -- Polyfill for jsdom
1438
global.TextDecoder=TextDecoderasany

‎site/package.json‎

Lines changed: 1 addition & 0 deletions
Original file line numberDiff line numberDiff line change
@@ -30,6 +30,7 @@
3030
"dependencies": {
3131
"@emoji-mart/data":"1.0.5",
3232
"@emoji-mart/react":"1.0.1",
33+
"@fastly/performance-observer-polyfill":"^2.0.0",
3334
"@emotion/react":"^11.10.8",
3435
"@emotion/styled":"^11.10.8",
3536
"@fontsource/ibm-plex-mono":"4.5.10",

‎site/src/components/AppLink/AppLink.stories.tsx‎

Lines changed: 2 additions & 0 deletions
Original file line numberDiff line numberDiff line change
@@ -5,6 +5,7 @@ import {
55
MockWorkspace,
66
MockWorkspaceAgent,
77
MockWorkspaceApp,
8+
MockProxyLatencies,
89
}from"testHelpers/entities"
910
import{AppLink,AppLinkProps}from"./AppLink"
1011
import{ProxyContext,getPreferredProxy}from"contexts/ProxyContext"
@@ -17,6 +18,7 @@ export default {
1718
constTemplate:Story<AppLinkProps>=(args)=>(
1819
<ProxyContext.Provider
1920
value={{
21+
proxyLatencies:MockProxyLatencies,
2022
proxy:getPreferredProxy(MockWorkspaceProxies,MockPrimaryWorkspaceProxy),
2123
proxies:MockWorkspaceProxies,
2224
isLoading:false,

‎site/src/components/Resources/AgentLatency.tsx‎

Lines changed: 3 additions & 10 deletions
Original file line numberDiff line numberDiff line change
@@ -1,13 +1,14 @@
11
import{useRef,useState,FC}from"react"
22
import{makeStyles,useTheme}from"@mui/styles"
3+
import{Theme}from"@mui/material/styles"
34
import{
45
HelpTooltipText,
56
HelpPopover,
67
HelpTooltipTitle,
78
}from"components/Tooltips/HelpTooltip"
89
import{Stack}from"components/Stack/Stack"
910
import{WorkspaceAgent,DERPRegion}from"api/typesGenerated"
10-
import{Theme}from"@mui/material/styles"
11+
import{getLatencyColor}from"utils/colors"
1112

1213
constgetDisplayLatency=(theme:Theme,agent:WorkspaceAgent)=>{
1314
// Find the right latency to display
@@ -22,17 +23,9 @@ const getDisplayLatency = (theme: Theme, agent: WorkspaceAgent) => {
2223
returnundefined
2324
}
2425

25-
// Get the color
26-
letcolor=theme.palette.success.light
27-
if(latency.latency_ms>=150&&latency.latency_ms<300){
28-
color=theme.palette.warning.light
29-
}elseif(latency.latency_ms>=300){
30-
color=theme.palette.error.light
31-
}
32-
3326
return{
3427
...latency,
35-
color,
28+
color:getLatencyColor(theme,latency.latency_ms),
3629
}
3730
}
3831

‎site/src/components/Resources/AgentRow.stories.tsx‎

Lines changed: 2 additions & 0 deletions
Original file line numberDiff line numberDiff line change
@@ -16,6 +16,7 @@ import {
1616
MockWorkspaceAgentStartTimeout,
1717
MockWorkspaceAgentTimeout,
1818
MockWorkspaceApp,
19+
MockProxyLatencies,
1920
}from"testHelpers/entities"
2021
import{AgentRow,AgentRowProps}from"./AgentRow"
2122
import{ProxyContext,getPreferredProxy}from"contexts/ProxyContext"
@@ -56,6 +57,7 @@ const TemplateFC = (
5657
return(
5758
<ProxyContext.Provider
5859
value={{
60+
proxyLatencies:MockProxyLatencies,
5961
proxy:getPreferredProxy(proxies,selectedProxy),
6062
proxies:proxies,
6163
isLoading:false,

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