arcad/emissary
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feat: rename gateway spec to proxy

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This commit is contained in:
wpetit 2023-03-21 13:28:41 +01:00
parent fa36d55163
commit fbcd3ca806
21 changed files with 216 additions and 183 deletions
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8
go.mod
View File

@ -3,12 +3,13 @@ module forge.cadoles.com/Cadoles/emissary
go 1.19
require (
forge.cadoles.com/arcad/edge v0.0.0-20230310133312-fd12d2ba42fa
forge.cadoles.com/arcad/edge v0.0.0-20230320204239-1f4f795d43ff
github.com/alecthomas/participle/v2 v2.0.0-beta.5
github.com/andreyvit/diff v0.0.0-20170406064948-c7f18ee00883
github.com/btcsuite/btcd/btcutil v1.1.3
github.com/davecgh/go-spew v1.1.1
github.com/denisbrodbeck/machineid v1.0.1
github.com/dop251/goja v0.0.0-20230304130813-e2f543bf4b4c
github.com/evanphx/json-patch/v5 v5.6.0
github.com/go-chi/chi v4.1.2+incompatible
github.com/go-chi/cors v1.2.1
@ -17,6 +18,7 @@ require (
github.com/jedib0t/go-pretty/v6 v6.4.4
github.com/lestrrat-go/jwx/v2 v2.0.8
github.com/lithammer/shortuuid/v4 v4.0.0
github.com/mitchellh/hashstructure/v2 v2.0.2
github.com/mitchellh/mapstructure v1.5.0
github.com/pkg/errors v0.9.1
github.com/qri-io/jsonschema v0.2.1
@ -29,7 +31,6 @@ require (
require (
github.com/barnybug/go-cast v0.0.0-20201201064555-a87ccbc26692 // indirect
github.com/dop251/goja v0.0.0-20230304130813-e2f543bf4b4c // indirect
github.com/dop251/goja_nodejs v0.0.0-20230226152057-060fa99b809f // indirect
github.com/gabriel-vasile/mimetype v1.4.1 // indirect
github.com/go-sourcemap/sourcemap v2.1.3+incompatible // indirect
@ -40,7 +41,6 @@ require (
github.com/hashicorp/mdns v1.0.5 // indirect
github.com/igm/sockjs-go/v3 v3.0.2 // indirect
github.com/miekg/dns v1.1.51 // indirect
github.com/mitchellh/hashstructure/v2 v2.0.2 // indirect
github.com/oklog/ulid/v2 v2.1.0 // indirect
github.com/orcaman/concurrent-map v1.0.0 // indirect
golang.org/x/net v0.8.0 // indirect
@ -107,3 +107,5 @@ require (
modernc.org/strutil v1.1.3 // indirect
modernc.org/token v1.1.0 // indirect
)
// replace forge.cadoles.com/arcad/edge => ../edge

18
go.sum
View File

@ -54,10 +54,10 @@ cloud.google.com/go/storage v1.6.0/go.mod h1:N7U0C8pVQ/+NIKOBQyamJIeKQKkZ+mxpohl
cloud.google.com/go/storage v1.8.0/go.mod h1:Wv1Oy7z6Yz3DshWRJFhqM/UCfaWIRTdp0RXyy7KQOVs=
cloud.google.com/go/storage v1.10.0/go.mod h1:FLPqc6j+Ki4BU591ie1oL6qBQGu2Bl/tZ9ullr3+Kg0=
dmitri.shuralyov.com/gpu/mtl v0.0.0-20190408044501-666a987793e9/go.mod h1:H6x//7gZCb22OMCxBHrMx7a5I7Hp++hsVxbQ4BYO7hU=
forge.cadoles.com/arcad/edge v0.0.0-20230303153719-6399196fe5c9 h1:dleaaf/rV2GWtGvrPunRakjrKVDfXoANxAy8/1ctMVs=
forge.cadoles.com/arcad/edge v0.0.0-20230303153719-6399196fe5c9/go.mod h1:pl9EMtSLSVr4wbDgQBDjr4aizwtmwasE686dm5arYPw=
forge.cadoles.com/arcad/edge v0.0.0-20230310133312-fd12d2ba42fa h1:dk0rNaBuCx0SxWTZBodg/y655tBaRtgLcW2hDqZRdxg=
forge.cadoles.com/arcad/edge v0.0.0-20230310133312-fd12d2ba42fa/go.mod h1:pl9EMtSLSVr4wbDgQBDjr4aizwtmwasE686dm5arYPw=
forge.cadoles.com/arcad/edge v0.0.0-20230320204239-1f4f795d43ff h1:dT7cZQWzSYfW3dVDOSe6OACBGBQNvn0wo32BIvDEowE=
forge.cadoles.com/arcad/edge v0.0.0-20230320204239-1f4f795d43ff/go.mod h1:ONd6vyQ0IM0vHi1i+bmZBRc1Fd0BoXMuDdY/+0sZefw=
gioui.org v0.0.0-20210308172011-57750fc8a0a6/go.mod h1:RSH6KIUZ0p2xy5zHDxgAM4zumjgTw83q2ge/PI+yyw8=
github.com/AdaLogics/go-fuzz-headers v0.0.0-20210715213245-6c3934b029d8/go.mod h1:CzsSbkDixRphAF5hS6wbMKq0eI6ccJRb7/A0M6JBnwg=
github.com/Azure/azure-pipeline-go v0.2.3/go.mod h1:x841ezTBIMG6O3lAcl8ATHnsOPVl2bqk7S3ta6S6u4k=
@ -448,8 +448,6 @@ github.com/docker/spdystream v0.0.0-20160310174837-449fdfce4d96/go.mod h1:Qh8CwZ
github.com/docopt/docopt-go v0.0.0-20180111231733-ee0de3bc6815/go.mod h1:WwZ+bS3ebgob9U8Nd0kOddGdZWjyMGR8Wziv+TBNwSE=
github.com/dop251/goja v0.0.0-20211022113120-dc8c55024d06/go.mod h1:R9ET47fwRVRPZnOGvHxxhuZcbrMCuiqOz3Rlrh4KSnk=
github.com/dop251/goja v0.0.0-20221118162653-d4bf6fde1b86/go.mod h1:yRkwfj0CBpOGre+TwBsqPV0IH0Pk73e4PXJOeNDboGs=
github.com/dop251/goja v0.0.0-20230226152633-7c93113e17ac h1:NGu46Adk2oPN3tinGFItahy4W9l+9uhEf03ZxbwmdVE=
github.com/dop251/goja v0.0.0-20230226152633-7c93113e17ac/go.mod h1:yRkwfj0CBpOGre+TwBsqPV0IH0Pk73e4PXJOeNDboGs=
github.com/dop251/goja v0.0.0-20230304130813-e2f543bf4b4c h1:/utv6nmTctV6OVgfk5+O6lEMEWL+6KJy4h9NZ5fnkQQ=
github.com/dop251/goja v0.0.0-20230304130813-e2f543bf4b4c/go.mod h1:QMWlm50DNe14hD7t24KEqZuUdC9sOTy8W6XbCU1mlw4=
github.com/dop251/goja_nodejs v0.0.0-20210225215109-d91c329300e7/go.mod h1:hn7BA7c8pLvoGndExHudxTDKZ84Pyvv+90pbBjbTz0Y=
@ -696,7 +694,6 @@ github.com/google/pprof v0.0.0-20210226084205-cbba55b83ad5/go.mod h1:kpwsk12EmLe
github.com/google/pprof v0.0.0-20210601050228-01bbb1931b22/go.mod h1:kpwsk12EmLew5upagYY7GY0pfYCcupk39gWOCRROcvE=
github.com/google/pprof v0.0.0-20210609004039-a478d1d731e9/go.mod h1:kpwsk12EmLew5upagYY7GY0pfYCcupk39gWOCRROcvE=
github.com/google/pprof v0.0.0-20210720184732-4bb14d4b1be1/go.mod h1:kpwsk12EmLew5upagYY7GY0pfYCcupk39gWOCRROcvE=
github.com/google/pprof v0.0.0-20221118152302-e6195bd50e26 h1:Xim43kblpZXfIBQsbuBVKCudVG457BR2GZFIz3uw3hQ=
github.com/google/pprof v0.0.0-20230207041349-798e818bf904/go.mod h1:uglQLonpP8qtYCYyzA+8c/9qtqgA3qsXGYqCPKARAFg=
github.com/google/pprof v0.0.0-20230309165930-d61513b1440d h1:um9/pc7tKMINFfP1eE7Wv6PRGXlcCSJkVajF7KJw3uQ=
github.com/google/pprof v0.0.0-20230309165930-d61513b1440d/go.mod h1:79YE0hCXdHag9sBkw2o+N/YnZtTkXi0UT9Nnixa5eYk=
@ -1028,7 +1025,6 @@ github.com/niemeyer/pretty v0.0.0-20200227124842-a10e7caefd8e/go.mod h1:zD1mROLA
github.com/nkovacs/streamquote v0.0.0-20170412213628-49af9bddb229/go.mod h1:0aYXnNPJ8l7uZxf45rWW1a/uME32OF0rhiYGNQ2oF2E=
github.com/nxadm/tail v1.4.4/go.mod h1:kenIhsEOeOJmVchQTgglprH7qJGnHDVpk1VPCcaMI8A=
github.com/nxadm/tail v1.4.8/go.mod h1:+ncqLTQzXmGhMZNUePPaPqPvBxHAIsmXswZKocGu+AU=
github.com/oklog/ulid v1.3.1 h1:EGfNDEx6MqHz8B3uNV6QAib1UR2Lm97sHi3ocA6ESJ4=
github.com/oklog/ulid v1.3.1/go.mod h1:CirwcVhetQ6Lv90oh/F+FBtV6XMibvdAFo93nm5qn4U=
github.com/oklog/ulid/v2 v2.1.0 h1:+9lhoxAP56we25tyYETBBY1YLA2SaoLvUFgrP2miPJU=
github.com/oklog/ulid/v2 v2.1.0/go.mod h1:rcEKHmBBKfef9DhnvX7y1HZBYxjXb0cP5ExxNsTT1QQ=
@ -1389,8 +1385,6 @@ golang.org/x/crypto v0.0.0-20210322153248-0c34fe9e7dc2/go.mod h1:T9bdIzuCu7OtxOm
golang.org/x/crypto v0.0.0-20210817164053-32db794688a5/go.mod h1:GvvjBRRGRdwPK5ydBHafDWAxML/pGHZbMvKqRZ5+Abc=
golang.org/x/crypto v0.0.0-20210921155107-089bfa567519/go.mod h1:GvvjBRRGRdwPK5ydBHafDWAxML/pGHZbMvKqRZ5+Abc=
golang.org/x/crypto v0.0.0-20220427172511-eb4f295cb31f/go.mod h1:IxCIyHEi3zRg3s0A5j5BB6A9Jmi73HwBIUl50j+osU4=
golang.org/x/crypto v0.6.0 h1:qfktjS5LUO+fFKeJXZ+ikTRijMmljikvG68fpMMruSc=
golang.org/x/crypto v0.6.0/go.mod h1:OFC/31mSvZgRz0V1QTNCzfAI1aIRzbiufJtkMIlEp58=
golang.org/x/crypto v0.7.0 h1:AvwMYaRytfdeVt3u6mLaxYtErKYjxA2OXjJ1HHq6t3A=
golang.org/x/crypto v0.7.0/go.mod h1:pYwdfH91IfpZVANVyUOhSIPZaFoJGxTFbZhFTx+dXZU=
golang.org/x/exp v0.0.0-20180321215751-8460e604b9de/go.mod h1:CJ0aWSM057203Lf6IL+f9T1iT9GByDxfZKAQTCR3kQA=
@ -1519,8 +1513,6 @@ golang.org/x/net v0.0.0-20220624214902-1bab6f366d9e/go.mod h1:XRhObCWvk6IyKnWLug
golang.org/x/net v0.0.0-20220722155237-a158d28d115b/go.mod h1:XRhObCWvk6IyKnWLug+ECip1KBveYUHfp+8e9klMJ9c=
golang.org/x/net v0.2.0/go.mod h1:KqCZLdyyvdV855qA2rE3GC2aiw5xGR5TEjj8smXukLY=
golang.org/x/net v0.4.0/go.mod h1:MBQ8lrhLObU/6UmLb4fmbmk5OcyYmqtbGd/9yIeKjEE=
golang.org/x/net v0.7.0 h1:rJrUqqhjsgNp7KqAIc25s9pZnjU7TUcSY7HcVZjdn1g=
golang.org/x/net v0.7.0/go.mod h1:2Tu9+aMcznHK/AK1HMvgo6xiTLG5rD5rZLDS+rp2Bjs=
golang.org/x/net v0.8.0 h1:Zrh2ngAOFYneWTAIAPethzeaQLuHwhuBkuV6ZiRnUaQ=
golang.org/x/net v0.8.0/go.mod h1:QVkue5JL9kW//ek3r6jTKnTFis1tRmNAW2P1shuFdJc=
golang.org/x/oauth2 v0.0.0-20180227000427-d7d64896b5ff/go.mod h1:N/0e6XlmueqKjAGxoOufVs8QHGRruUQn6yWY3a++T0U=
@ -1686,8 +1678,6 @@ golang.org/x/sys v0.0.0-20220722155257-8c9f86f7a55f/go.mod h1:oPkhp1MJrh7nUepCBc
golang.org/x/sys v0.0.0-20220811171246-fbc7d0a398ab/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
golang.org/x/sys v0.2.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
golang.org/x/sys v0.3.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
golang.org/x/sys v0.5.0 h1:MUK/U/4lj1t1oPg0HfuXDN/Z1wv31ZJ/YcPiGccS4DU=
golang.org/x/sys v0.5.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
golang.org/x/sys v0.6.0 h1:MVltZSvRTcU2ljQOhs94SXPftV6DCNnZViHeQps87pQ=
golang.org/x/sys v0.6.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
golang.org/x/term v0.0.0-20201117132131-f5c789dd3221/go.mod h1:Nr5EML6q2oocZ2LXRh80K7BxOlk5/8JxuGnuhpl+muw=
@ -1697,8 +1687,6 @@ golang.org/x/term v0.0.0-20210615171337-6886f2dfbf5b/go.mod h1:jbD1KX2456YbFQfuX
golang.org/x/term v0.0.0-20210927222741-03fcf44c2211/go.mod h1:jbD1KX2456YbFQfuXm/mYQcufACuNUgVhRMnK/tPxf8=
golang.org/x/term v0.2.0/go.mod h1:TVmDHMZPmdnySmBfhjOoOdhjzdE1h4u1VwSiw2l1Nuc=
golang.org/x/term v0.3.0/go.mod h1:q750SLmJuPmVoN1blW3UFBPREJfb1KmY3vwxfr+nFDA=
golang.org/x/term v0.5.0 h1:n2a8QNdAb0sZNpU9R1ALUXBbY+w51fCQDN+7EdxNBsY=
golang.org/x/term v0.5.0/go.mod h1:jMB1sMXY+tzblOD4FWmEbocvup2/aLOaQEp7JmGp78k=
golang.org/x/term v0.6.0 h1:clScbb1cHjoCkyRbWwBEUZ5H/tIFu5TAXIqaZD0Gcjw=
golang.org/x/term v0.6.0/go.mod h1:m6U89DPEgQRMq3DNkDClhWw02AUbt2daBVO4cn4Hv9U=
golang.org/x/text v0.0.0-20170915032832-14c0d48ead0c/go.mod h1:NqM8EUOU14njkJ3fqMW+pc6Ldnwhi/IjpwHt7yyuwOQ=
@ -1713,8 +1701,6 @@ golang.org/x/text v0.3.7/go.mod h1:u+2+/6zg+i71rQMx5EYifcz6MCKuco9NR6JIITiCfzQ=
golang.org/x/text v0.3.8/go.mod h1:E6s5w1FMmriuDzIBO73fBruAKo1PCIq6d2Q6DHfQ8WQ=
golang.org/x/text v0.4.0/go.mod h1:mrYo+phRRbMaCq/xk9113O4dZlRixOauAjOtrjsXDZ8=
golang.org/x/text v0.5.0/go.mod h1:mrYo+phRRbMaCq/xk9113O4dZlRixOauAjOtrjsXDZ8=
golang.org/x/text v0.7.0 h1:4BRB4x83lYWy72KwLD/qYDuTu7q9PjSagHvijDw7cLo=
golang.org/x/text v0.7.0/go.mod h1:mrYo+phRRbMaCq/xk9113O4dZlRixOauAjOtrjsXDZ8=
golang.org/x/text v0.8.0 h1:57P1ETyNKtuIjB4SRd15iJxuhj8Gc416Y78H3qgMh68=
golang.org/x/text v0.8.0/go.mod h1:e1OnstbJyHTd6l/uOt8jFFHp6TRDWZR/bV3emEE/zU8=
golang.org/x/time v0.0.0-20180412165947-fbb02b2291d2/go.mod h1:tRJNPiyCQ0inRvYxbN9jk5I+vvW/OXSQhTDSoE431IQ=

21
internal/agent/controller/app/controller.go
View File

@ -11,6 +11,7 @@ import (
"forge.cadoles.com/Cadoles/emissary/internal/spec/app"
"forge.cadoles.com/arcad/edge/pkg/bundle"
"forge.cadoles.com/arcad/edge/pkg/storage/sqlite"
"github.com/lestrrat-go/jwx/v2/jwk"
"github.com/mitchellh/hashstructure/v2"
"github.com/pkg/errors"
"gitlab.com/wpetit/goweb/logger"
@ -96,18 +97,32 @@ func (c *Controller) updateApps(ctx context.Context, spec *app.Spec) {
}
}
var (
key jwk.Key
err error
)
if spec.Auth != nil {
key, err = jwk.FromRaw(spec.Auth.Key)
if err != nil {
logger.Error(ctx, "could not parse authentication key", logger.E(errors.WithStack(err)))
return
}
}
// (Re)start apps
for appID, appSpec := range spec.Apps {
appCtx := logger.With(ctx, logger.F("appID", appID))
if err := c.updateApp(ctx, appID, appSpec); err != nil {
if err := c.updateApp(ctx, appID, appSpec, key); err != nil {
logger.Error(appCtx, "could not update app", logger.E(errors.WithStack(err)))
continue
}
}
}
func (c *Controller) updateApp(ctx context.Context, appID string, appSpec app.AppEntry) (err error) {
func (c *Controller) updateApp(ctx context.Context, appID string, appSpec app.AppEntry, key jwk.Key) (err error) {
newAppSpecHash, err := hashstructure.Hash(appSpec, hashstructure.FormatV2, nil)
if err != nil {
return errors.WithStack(err)
@ -150,7 +165,7 @@ func (c *Controller) updateApp(ctx context.Context, appID string, appSpec app.Ap
}
entry = &serverEntry{
Server: NewServer(bundle, db),
Server: NewServer(bundle, db, key),
SpecHash: 0,
}

19
internal/agent/controller/app/server.go
View File

@ -22,6 +22,7 @@ import (
"github.com/dop251/goja"
"github.com/go-chi/chi/middleware"
"github.com/go-chi/chi/v5"
"github.com/lestrrat-go/jwx/v2/jwk"
"github.com/pkg/errors"
)
@ -30,6 +31,7 @@ type Server struct {
db *sql.DB
server *http.Server
serverMutex sync.RWMutex
key jwk.Key
}
func (s *Server) Start(ctx context.Context, addr string) (err error) {
@ -129,7 +131,9 @@ func (s *Server) getAppModules(bus bus.Bus, ds storage.DocumentStore, bs storage
module.StoreModuleFactory(ds),
module.BlobModuleFactory(bus, bs),
module.Extends(
auth.ModuleFactory(),
auth.ModuleFactory(
auth.WithJWT(s.getJWTKeySet),
),
func(o *goja.Object) {
if err := o.Set("CLAIM_ROLE", "role"); err != nil {
panic(errors.New("could not set 'CLAIM_ROLE' property"))
@ -143,9 +147,20 @@ func (s *Server) getAppModules(bus bus.Bus, ds storage.DocumentStore, bs storage
}
}
func NewServer(bundle bundle.Bundle, db *sql.DB) *Server {
func (s *Server) getJWTKeySet() (jwk.Set, error) {
set := jwk.NewSet()
if err := set.AddKey(s.key); err != nil {
return nil, errors.WithStack(err)
}
return set, nil
}
func NewServer(bundle bundle.Bundle, db *sql.DB, key jwk.Key) *Server {
return &Server{
bundle: bundle,
db: db,
key: key,
}
}

124
internal/agent/controller/gateway/controller.go
View File

@ -1,124 +0,0 @@
package gateway
import (
"context"
"forge.cadoles.com/Cadoles/emissary/internal/agent"
"forge.cadoles.com/Cadoles/emissary/internal/spec/gateway"
"github.com/pkg/errors"
"gitlab.com/wpetit/goweb/logger"
)
type Controller struct {
proxies map[gateway.ID]*ReverseProxy
currentSpecRevision int
}
// Name implements node.Controller.
func (c *Controller) Name() string {
return "gateway-controller"
}
// Reconcile implements node.Controller.
func (c *Controller) Reconcile(ctx context.Context, state *agent.State) error {
gatewaySpec := gateway.NewSpec()
if err := state.GetSpec(gateway.NameGateway, gatewaySpec); err != nil {
if errors.Is(err, agent.ErrSpecNotFound) {
logger.Info(ctx, "could not find gateway spec, stopping all remaining proxies")
c.stopAllProxies(ctx)
return nil
}
return errors.WithStack(err)
}
logger.Info(ctx, "retrieved spec", logger.F("spec", gatewaySpec.SpecName()), logger.F("revision", gatewaySpec.SpecRevision()))
if c.currentSpecRevision == gatewaySpec.SpecRevision() {
logger.Info(ctx, "spec revision did not change, doing nothing")
return nil
}
c.updateProxies(ctx, gatewaySpec)
c.currentSpecRevision = gatewaySpec.SpecRevision()
logger.Info(ctx, "updating current spec revision", logger.F("revision", c.currentSpecRevision))
return nil
}
func (c *Controller) stopAllProxies(ctx context.Context) {
for gatewayID, proxy := range c.proxies {
logger.Info(ctx, "stopping proxy", logger.F("gatewayID", gatewayID))
if err := proxy.Stop(); err != nil {
logger.Error(
ctx, "error while stopping proxy",
logger.F("gatewayID", gatewayID),
logger.E(errors.WithStack(err)),
)
delete(c.proxies, gatewayID)
}
}
}
func (c *Controller) updateProxies(ctx context.Context, spec *gateway.Spec) {
// Stop and remove obsolete gateways
for gatewayID, proxy := range c.proxies {
if _, exists := spec.Gateways[gatewayID]; exists {
continue
}
logger.Info(ctx, "stopping proxy", logger.F("gatewayID", gatewayID))
if err := proxy.Stop(); err != nil {
logger.Error(
ctx, "error while stopping proxy",
logger.F("gatewayID", gatewayID),
logger.E(errors.WithStack(err)),
)
delete(c.proxies, gatewayID)
}
}
// (Re)start gateways
for gatewayID, gatewaySpec := range spec.Gateways {
proxy, exists := c.proxies[gatewayID]
if !exists {
proxy = NewReverseProxy()
c.proxies[gatewayID] = proxy
}
logger.Info(
ctx, "starting proxy",
logger.F("gatewayID", gatewayID),
logger.F("addr", gatewaySpec.Address),
logger.F("target", gatewaySpec.Target),
)
if err := proxy.Start(ctx, gatewaySpec.Address, gatewaySpec.Target); err != nil {
logger.Error(
ctx, "error while starting proxy",
logger.F("gatewayID", gatewayID),
logger.E(errors.WithStack(err)),
)
delete(c.proxies, gatewayID)
}
}
}
func NewController() *Controller {
return &Controller{
proxies: make(map[gateway.ID]*ReverseProxy),
currentSpecRevision: -1,
}
}
var _ agent.Controller = &Controller{}

124
internal/agent/controller/proxy/controller.go Normal file
View File

@ -0,0 +1,124 @@
package proxy
import (
"context"
"forge.cadoles.com/Cadoles/emissary/internal/agent"
"forge.cadoles.com/Cadoles/emissary/internal/spec/proxy"
"github.com/pkg/errors"
"gitlab.com/wpetit/goweb/logger"
)
type Controller struct {
proxies map[proxy.ID]*ReverseProxy
currentSpecRevision int
}
// Name implements node.Controller.
func (c *Controller) Name() string {
return "proxy-controller"
}
// Reconcile implements node.Controller.
func (c *Controller) Reconcile(ctx context.Context, state *agent.State) error {
proxySpec := proxy.NewSpec()
if err := state.GetSpec(proxy.NameProxy, proxySpec); err != nil {
if errors.Is(err, agent.ErrSpecNotFound) {
logger.Info(ctx, "could not find proxy spec, stopping all remaining proxies")
c.stopAllProxies(ctx)
return nil
}
return errors.WithStack(err)
}
logger.Info(ctx, "retrieved spec", logger.F("spec", proxySpec.SpecName()), logger.F("revision", proxySpec.SpecRevision()))
if c.currentSpecRevision == proxySpec.SpecRevision() {
logger.Info(ctx, "spec revision did not change, doing nothing")
return nil
}
c.updateProxies(ctx, proxySpec)
c.currentSpecRevision = proxySpec.SpecRevision()
logger.Info(ctx, "updating current spec revision", logger.F("revision", c.currentSpecRevision))
return nil
}
func (c *Controller) stopAllProxies(ctx context.Context) {
for proxyID, proxy := range c.proxies {
logger.Info(ctx, "stopping proxy", logger.F("proxyID", proxyID))
if err := proxy.Stop(); err != nil {
logger.Error(
ctx, "error while stopping proxy",
logger.F("proxyID", proxyID),
logger.E(errors.WithStack(err)),
)
delete(c.proxies, proxyID)
}
}
}
func (c *Controller) updateProxies(ctx context.Context, spec *proxy.Spec) {
// Stop and remove obsolete proxys
for proxyID, proxy := range c.proxies {
if _, exists := spec.Proxies[proxyID]; exists {
continue
}
logger.Info(ctx, "stopping proxy", logger.F("proxyID", proxyID))
if err := proxy.Stop(); err != nil {
logger.Error(
ctx, "error while stopping proxy",
logger.F("proxyID", proxyID),
logger.E(errors.WithStack(err)),
)
delete(c.proxies, proxyID)
}
}
// (Re)start proxys
for proxyID, proxySpec := range spec.Proxies {
proxy, exists := c.proxies[proxyID]
if !exists {
proxy = NewReverseProxy()
c.proxies[proxyID] = proxy
}
logger.Info(
ctx, "starting proxy",
logger.F("proxyID", proxyID),
logger.F("addr", proxySpec.Address),
logger.F("target", proxySpec.Target),
)
if err := proxy.Start(ctx, proxySpec.Address, proxySpec.Target); err != nil {
logger.Error(
ctx, "error while starting proxy",
logger.F("proxyID", proxyID),
logger.E(errors.WithStack(err)),
)
delete(c.proxies, proxyID)
}
}
}
func NewController() *Controller {
return &Controller{
proxies: make(map[proxy.ID]*ReverseProxy),
currentSpecRevision: -1,
}
}
var _ agent.Controller = &Controller{}

2
internal/agent/controller/gateway/reverse_proxy.go → internal/agent/controller/proxy/reverse_proxy.go
View File

@ -1,4 +1,4 @@
package gateway
package proxy
import (
"context"

6
internal/command/agent/run.go
View File

@ -5,9 +5,9 @@ import (
"forge.cadoles.com/Cadoles/emissary/internal/agent"
"forge.cadoles.com/Cadoles/emissary/internal/agent/controller/app"
"forge.cadoles.com/Cadoles/emissary/internal/agent/controller/gateway"
"forge.cadoles.com/Cadoles/emissary/internal/agent/controller/openwrt"
"forge.cadoles.com/Cadoles/emissary/internal/agent/controller/persistence"
"forge.cadoles.com/Cadoles/emissary/internal/agent/controller/proxy"
"forge.cadoles.com/Cadoles/emissary/internal/agent/controller/spec"
"forge.cadoles.com/Cadoles/emissary/internal/agent/metadata"
"forge.cadoles.com/Cadoles/emissary/internal/agent/metadata/collector/buildinfo"
@ -49,8 +49,8 @@ func RunCommand() *cli.Command {
controllers = append(controllers, spec.NewController())
}
if ctrlConf.Gateway.Enabled {
controllers = append(controllers, gateway.NewController())
if ctrlConf.Proxy.Enabled {
controllers = append(controllers, proxy.NewController())
}
if ctrlConf.UCI.Enabled {

2
internal/command/api/agent/spec/update.go
View File

@ -16,7 +16,7 @@ import (
// Import specs
_ "forge.cadoles.com/Cadoles/emissary/internal/spec/app"
_ "forge.cadoles.com/Cadoles/emissary/internal/spec/gateway"
_ "forge.cadoles.com/Cadoles/emissary/internal/spec/proxy"
_ "forge.cadoles.com/Cadoles/emissary/internal/spec/uci"
)

2
internal/command/main.go
View File

@ -11,7 +11,7 @@ import (
"github.com/urfave/cli/v2"
// Spec validation
_ "forge.cadoles.com/Cadoles/emissary/internal/spec/gateway"
_ "forge.cadoles.com/Cadoles/emissary/internal/spec/proxy"
_ "forge.cadoles.com/Cadoles/emissary/internal/spec/uci"
)

6
internal/config/agent.go
View File

@ -17,7 +17,7 @@ type ShellCollectorConfig struct {
type ControllersConfig struct {
Persistence PersistenceControllerConfig `yaml:"persistence"`
Spec SpecControllerConfig `yaml:"spec"`
Gateway GatewayControllerConfig `yaml:"gateway"`
Proxy ProxyControllerConfig `yaml:"proxy"`
UCI UCIControllerConfig `yaml:"uci"`
App AppControllerConfig `yaml:"app"`
}
@ -30,7 +30,7 @@ type PersistenceControllerConfig struct {
type SpecControllerConfig struct {
Enabled InterpolatedBool `yaml:"enabled"`
}
type GatewayControllerConfig struct {
type ProxyControllerConfig struct {
Enabled InterpolatedBool `yaml:"enabled"`
}
@ -59,7 +59,7 @@ func NewDefaultAgentConfig() AgentConfig {
Enabled: true,
StateFile: "state.json",
},
Gateway: GatewayControllerConfig{
Proxy: ProxyControllerConfig{
Enabled: true,
},
UCI: UCIControllerConfig{

2
internal/server/spec_api.go
View File

@ -13,7 +13,7 @@ import (
// Import specs
_ "forge.cadoles.com/Cadoles/emissary/internal/spec/app"
_ "forge.cadoles.com/Cadoles/emissary/internal/spec/gateway"
_ "forge.cadoles.com/Cadoles/emissary/internal/spec/proxy"
_ "forge.cadoles.com/Cadoles/emissary/internal/spec/uci"
)

9
internal/spec/app/schema.json
View File

@ -29,6 +29,15 @@
"additionalProperties": false
}
}
},
"auth": {
"type": "object",
"properties": {
"key": {
"type": "object"
}
},
"required": ["key"]
}
},
"required": ["apps"],

10
internal/spec/app/spec.go
View File

@ -7,8 +7,9 @@ import (
const NameApp spec.Name = "app.emissary.cadoles.com"
type Spec struct {
Revision int `json:"revisions"`
Apps map[string]AppEntry
Revision int `json:"revisions"`
Apps map[string]AppEntry `json:"apps"`
Auth *Auth `json:"auth"`
}
type AppEntry struct {
@ -18,6 +19,10 @@ type AppEntry struct {
Format string `json:"format"`
}
type Auth struct {
Key any `json:"key"`
}
func (s *Spec) SpecName() spec.Name {
return NameApp
}
@ -29,6 +34,7 @@ func (s *Spec) SpecRevision() int {
func (s *Spec) SpecData() map[string]any {
return map[string]any{
"apps": s.Apps,
"auth": s.Auth,
}
}

4
internal/spec/gateway/init.go → internal/spec/proxy/init.go
View File

@ -1,4 +1,4 @@
package gateway
package proxy
import (
_ "embed"
@ -11,7 +11,7 @@ import (
var schema []byte
func init() {
if err := spec.Register(NameGateway, schema); err != nil {
if err := spec.Register(NameProxy, schema); err != nil {
panic(errors.WithStack(err))
}
}

10
internal/spec/gateway/schema.json → internal/spec/proxy/schema.json
View File

@ -1,11 +1,11 @@
{
"$schema": "https://json-schema.org/draft/2020-12/schema",
"$id": "https://gateway.emissary.cadoles.com/spec.json",
"title": "GatewaySpec",
"description": "Emissary 'Gateway' specification",
"$id": "https://proxy.emissary.cadoles.com/spec.json",
"title": "ProxySpec",
"description": "Emissary 'Proxy' specification",
"type": "object",
"properties": {
"gateways": {
"proxies": {
"type": "object",
"patternProperties": {
".*": {
@ -24,6 +24,6 @@
}
}
},
"required": ["gateways"],
"required": ["proxies"],
"additionalProperties": false
}

16
internal/spec/gateway/spec.go → internal/spec/proxy/spec.go
View File

@ -1,23 +1,23 @@
package gateway
package proxy
import "forge.cadoles.com/Cadoles/emissary/internal/spec"
const NameGateway spec.Name = "gateway.emissary.cadoles.com"
const NameProxy spec.Name = "proxy.emissary.cadoles.com"
type ID string
type Spec struct {
Revision int `json:"revision"`
Gateways map[ID]GatewayEntry `json:"gateways"`
Revision int `json:"revision"`
Proxies map[ID]ProxyEntry `json:"proxies"`
}
type GatewayEntry struct {
type ProxyEntry struct {
Address string `json:"address"`
Target string `json:"target"`
}
func (s *Spec) SpecName() spec.Name {
return NameGateway
return NameProxy
}
func (s *Spec) SpecRevision() int {
@ -26,14 +26,14 @@ func (s *Spec) SpecRevision() int {
func (s *Spec) SpecData() map[string]any {
return map[string]any{
"gateways": s.Gateways,
"proxies": s.Proxies,
}
}
func NewSpec() *Spec {
return &Spec{
Revision: -1,
Gateways: make(map[ID]GatewayEntry),
Proxies: make(map[ID]ProxyEntry),
}
}

4
internal/spec/gateway/testdata/spec-additional-prop.json → internal/spec/proxy/testdata/spec-additional-prop.json vendored
View File

@ -1,7 +1,7 @@
{
"name": "gateway.emissary.cadoles.com",
"name": "proxy.emissary.cadoles.com",
"data": {
"gateways": {
"proxies": {
"cadoles.com": {
"address": ":3003",
"target": "https://www.cadoles.com",

4
internal/spec/gateway/testdata/spec-missing-prop.json → internal/spec/proxy/testdata/spec-missing-prop.json vendored
View File

@ -1,7 +1,7 @@
{
"name": "gateway.emissary.cadoles.com",
"name": "proxy.emissary.cadoles.com",
"data": {
"gateways": {
"proxies": {
"cadoles.com": {
"address": ":3003"
}

4
internal/spec/gateway/testdata/spec-ok.json → internal/spec/proxy/testdata/spec-ok.json vendored
View File

@ -1,7 +1,7 @@
{
"name": "gateway.emissary.cadoles.com",
"name": "proxy.emissary.cadoles.com",
"data": {
"gateways": {
"proxies": {
"cadoles.com": {
"address": ":3003",
"target": "https://www.cadoles.com"

4
internal/spec/gateway/validator_test.go → internal/spec/proxy/validator_test.go
View File

@ -1,4 +1,4 @@
package gateway
package proxy
import (
"context"
@ -38,7 +38,7 @@ func TestValidator(t *testing.T) {
t.Parallel()
validator := spec.NewValidator()
if err := validator.Register(NameGateway, schema); err != nil {
if err := validator.Register(NameProxy, schema); err != nil {
t.Fatalf("+%v", errors.WithStack(err))
}