A container registry that uses the AT Protocol for manifest storage and S3 for blob storage.
atcr.io
docker
container
atproto
go
updated favicons, fix domain rerouting, fix deploy provisioning
+180
-32
+52
deploy/upcloud/provision.go
+52
deploy/upcloud/provision.go
···
256
256
saveState(state)
257
257
}
258
258
259
+
// Always reconcile forwarded headers rule (handles existing LBs)
260
+
if err := ensureLBForwardedHeaders(ctx, svc, state.LB.UUID); err != nil {
261
+
return fmt.Errorf("LB forwarded headers: %w", err)
262
+
}
263
+
259
264
// Always reconcile TLS certs (handles partial failures and re-runs)
260
265
tlsDomains := []string{cfg.BaseDomain}
261
266
tlsDomains = append(tlsDomains, cfg.RegistryDomains...)
···
567
572
},
568
573
Rules: []request.LoadBalancerFrontendRule{
569
574
{
575
+
Name: "set-forwarded-headers",
576
+
Priority: 1,
577
+
Matchers: []upcloud.LoadBalancerMatcher{},
578
+
Actions: []upcloud.LoadBalancerAction{
579
+
request.NewLoadBalancerSetForwardedHeadersAction(),
580
+
},
581
+
},
582
+
{
570
583
Name: "route-hold",
571
584
Priority: 10,
572
585
Matchers: []upcloud.LoadBalancerMatcher{
···
716
729
}
717
730
fmt.Printf(" TLS certificate: %s\n", domain)
718
731
}
732
+
733
+
return nil
734
+
}
735
+
736
+
// ensureLBForwardedHeaders ensures the "https" frontend has a set_forwarded_headers rule.
737
+
// This makes the LB set X-Forwarded-For, X-Forwarded-Proto, and X-Forwarded-Port headers,
738
+
// overwriting any pre-existing values (prevents spoofing).
739
+
func ensureLBForwardedHeaders(ctx context.Context, svc *service.Service, lbUUID string) error {
740
+
rules, err := svc.GetLoadBalancerFrontendRules(ctx, &request.GetLoadBalancerFrontendRulesRequest{
741
+
ServiceUUID: lbUUID,
742
+
FrontendName: "https",
743
+
})
744
+
if err != nil {
745
+
return fmt.Errorf("get frontend rules: %w", err)
746
+
}
747
+
748
+
for _, r := range rules {
749
+
if r.Name == "set-forwarded-headers" {
750
+
fmt.Println(" Forwarded headers rule: exists")
751
+
return nil
752
+
}
753
+
}
754
+
755
+
_, err = svc.CreateLoadBalancerFrontendRule(ctx, &request.CreateLoadBalancerFrontendRuleRequest{
756
+
ServiceUUID: lbUUID,
757
+
FrontendName: "https",
758
+
Rule: request.LoadBalancerFrontendRule{
759
+
Name: "set-forwarded-headers",
760
+
Priority: 1,
761
+
Matchers: []upcloud.LoadBalancerMatcher{},
762
+
Actions: []upcloud.LoadBalancerAction{
763
+
request.NewLoadBalancerSetForwardedHeadersAction(),
764
+
},
765
+
},
766
+
})
767
+
if err != nil {
768
+
return fmt.Errorf("create forwarded headers rule: %w", err)
769
+
}
770
+
fmt.Println(" Forwarded headers rule: created")
719
771
720
772
return nil
721
773
}
pkg/appview/public/apple-touch-icon.png
pkg/appview/public/apple-touch-icon.png
This is a binary file and will not be displayed.
pkg/appview/public/atcr.png
pkg/appview/public/atcr.png
This is a binary file and will not be displayed.
pkg/appview/public/favicon-96x96.png
pkg/appview/public/favicon-96x96.png
This is a binary file and will not be displayed.
pkg/appview/public/favicon.ico
pkg/appview/public/favicon.ico
This is a binary file and will not be displayed.
+76
-15
pkg/appview/public/favicon.svg
+76
-15
pkg/appview/public/favicon.svg
···
1
-
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7
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8
-
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9
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10
-
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11
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12
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13
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1
+
<?xml version="1.0" encoding="UTF-8" standalone="no"?>
2
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3
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xmlns="http://www.w3.org/2000/svg"
8
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xmlns:svg="http://www.w3.org/2000/svg">
9
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10
+
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11
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12
+
id="g1">
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14
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+
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30
+
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32
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37
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42
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46
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49
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50
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<path
51
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53
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54
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55
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56
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57
+
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58
+
aria-label="@" />
59
+
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60
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61
+
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62
+
width="512"
63
+
height="16"
64
+
x="0"
65
+
y="248" />
66
+
<rect
67
+
style="fill:#000000;fill-opacity:1;stroke-width:0;stroke-linejoin:round;stroke-opacity:0;paint-order:markers fill stroke"
68
+
id="rect2"
69
+
width="16"
70
+
height="512"
71
+
x="248"
72
+
y="0" />
14
73
</g>
15
-
</svg></svg><style>@media (prefers-color-scheme: light) { :root { filter: none; } }
74
+
<style
75
+
id="style4">@media (prefers-color-scheme: light) { :root { filter: none; } }
16
76
@media (prefers-color-scheme: dark) { :root { filter: none; } }
17
-
</style></svg>
77
+
</style>
78
+
</svg>
pkg/appview/public/web-app-manifest-192x192.png
pkg/appview/public/web-app-manifest-192x192.png
This is a binary file and will not be displayed.
pkg/appview/public/web-app-manifest-512x512.png
pkg/appview/public/web-app-manifest-512x512.png
This is a binary file and will not be displayed.
+52
-17
pkg/appview/server.go
+52
-17
pkg/appview/server.go
···
9
9
"log/slog"
10
10
"net"
11
11
"net/http"
12
+
"net/url"
12
13
"os"
13
14
"os/signal"
14
15
"strings"
15
16
"syscall"
16
17
"time"
17
18
19
+
"github.com/distribution/distribution/v3/registry/api/errcode"
18
20
"github.com/distribution/distribution/v3/registry/handlers"
19
21
"github.com/go-chi/chi/v5"
20
22
chimiddleware "github.com/go-chi/chi/v5/middleware"
···
239
241
mainRouter.Use(chimiddleware.GetHead)
240
242
mainRouter.Use(routes.CORSMiddleware())
241
243
242
-
// Registry domain redirect middleware
244
+
// Domain routing middleware
243
245
if len(cfg.Server.RegistryDomains) > 0 {
244
-
mainRouter.Use(RegistryDomainRedirect(cfg.Server.RegistryDomains, cfg.Server.BaseURL))
245
-
slog.Info("Registry domain redirect enabled",
246
+
mainRouter.Use(DomainRoutingMiddleware(cfg.Server.RegistryDomains, cfg.Server.BaseURL))
247
+
slog.Info("Domain routing middleware enabled",
246
248
"registry_domains", cfg.Server.RegistryDomains,
247
249
"ui_base_url", cfg.Server.BaseURL)
248
250
}
···
580
582
)
581
583
}
582
584
583
-
// RegistryDomainRedirect redirects all non-registry requests from registry
584
-
// domains to the UI domain. Only /v2 and /v2/* pass through for Docker clients.
585
-
// Uses 307 (Temporary Redirect) to preserve POST method/body.
586
-
func RegistryDomainRedirect(registryDomains []string, uiBaseURL string) func(http.Handler) http.Handler {
587
-
domains := make(map[string]bool, len(registryDomains))
585
+
// DomainRoutingMiddleware enforces three-tier domain routing:
586
+
//
587
+
// 1. UI domain (BaseURL hostname): serves web UI, auth, and static assets.
588
+
// Blocks /v2/* with an OCI UNSUPPORTED error — registry API lives on
589
+
// the dedicated registry domain(s).
590
+
// 2. Registry domains: allows /v2/* for Docker clients. Redirects everything
591
+
// else to the UI domain with 307 Temporary Redirect.
592
+
// 3. Unknown domains (CDN origins, IPs, etc.): redirects all requests to the
593
+
// UI domain with 307, except /health for load balancer probes.
594
+
func DomainRoutingMiddleware(registryDomains []string, uiBaseURL string) func(http.Handler) http.Handler {
595
+
regDomains := make(map[string]bool, len(registryDomains))
588
596
for _, d := range registryDomains {
589
-
domains[d] = true
597
+
regDomains[d] = true
598
+
}
599
+
600
+
// Extract UI hostname from BaseURL (e.g., "https://seamark.dev" -> "seamark.dev")
601
+
var uiHost string
602
+
if parsed, err := url.Parse(uiBaseURL); err == nil {
603
+
uiHost = parsed.Hostname()
590
604
}
591
605
606
+
primaryReg := primaryRegistryDomain(registryDomains)
607
+
592
608
return func(next http.Handler) http.Handler {
593
609
return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
594
610
host := r.Host
···
596
612
host = host[:idx]
597
613
}
598
614
599
-
if domains[host] {
600
-
path := r.URL.Path
601
-
if path == "/v2" || path == "/v2/" || strings.HasPrefix(path, "/v2/") {
615
+
path := r.URL.Path
616
+
isV2 := path == "/v2" || path == "/v2/" || strings.HasPrefix(path, "/v2/")
617
+
618
+
switch {
619
+
case host == uiHost:
620
+
// UI domain: block /v2/*, serve everything else
621
+
if isV2 {
622
+
if err := errcode.ServeJSON(w, errcode.ErrorCodeUnsupported.WithMessage(
623
+
fmt.Sprintf("registry API is not available on this domain, use %s", primaryReg),
624
+
)); err != nil {
625
+
slog.Error("failed to write OCI error response", "error", err)
626
+
}
627
+
return
628
+
}
629
+
next.ServeHTTP(w, r)
630
+
631
+
case regDomains[host]:
632
+
// Registry domain: allow /v2/*, redirect everything else
633
+
if isV2 {
602
634
next.ServeHTTP(w, r)
603
635
return
604
636
}
637
+
http.Redirect(w, r, uiBaseURL+r.URL.RequestURI(), http.StatusTemporaryRedirect)
605
638
606
-
target := uiBaseURL + r.URL.RequestURI()
607
-
http.Redirect(w, r, target, http.StatusTemporaryRedirect)
608
-
return
639
+
default:
640
+
// Unknown domain: allow /health, redirect everything else
641
+
if path == "/health" {
642
+
next.ServeHTTP(w, r)
643
+
return
644
+
}
645
+
http.Redirect(w, r, uiBaseURL+r.URL.RequestURI(), http.StatusTemporaryRedirect)
609
646
}
610
-
611
-
next.ServeHTTP(w, r)
612
647
})
613
648
}
614
649
}