Merge pull request 'feat: 实现 PostgreSQL 所有权 registry' (#4) from feature/postgresql-registry into main

Reviewed-on: #4

Makefile

@@ -18,6 +18,8 @@ CONTAINER_TOOL ?= docker
 
 # DEV_COMPOSE manages disposable PostgreSQL and OpenBao dependencies for local work.
 DEV_COMPOSE ?= docker compose -f hack/dev/compose.yaml
+POSTGRES_DEV_PORT ?= 15432
+POSTGRES_TEST_DSN ?= postgres://postgres:[email protected]:$(POSTGRES_DEV_PORT)/postgres?sslmode=disable
 
 # Setting SHELL to bash allows bash commands to be executed by recipes.
 # Options are set to exit when a recipe line exits non-zero or a piped command fails.
@@ -59,6 +61,10 @@ dev-smoke: dev-up ## Verify PostgreSQL and OpenBao development dependencies.
 dev-down: ## Remove disposable development dependencies and their data.
 	$(DEV_COMPOSE) down --volumes --remove-orphans
 
+.PHONY: test-integration
+test-integration: dev-up ## Run adapter integration tests against disposable dependencies.
+	POSTGRES_TEST_DSN="$(POSTGRES_TEST_DSN)" go test ./internal/postgresql/...
+
 .PHONY: manifests
 manifests: controller-gen ## Generate WebhookConfiguration, ClusterRole and CustomResourceDefinition objects.
 	"$(CONTROLLER_GEN)" rbac:roleName=manager-role crd webhook paths="./..." output:crd:artifacts:config=config/crd/bases

go.mod

@@ -3,6 +3,8 @@ module git.ddupan.top/panxiao81/postgresql-tenant-operator
 go 1.26.0
 
 require (
+	github.com/jackc/pgx/v5 v5.11.0
+	github.com/jackc/tern/v2 v2.4.3
 	github.com/onsi/ginkgo/v2 v2.27.4
 	github.com/onsi/gomega v1.39.0
 	k8s.io/apimachinery v0.36.0
@@ -12,7 +14,10 @@ require (
 
 require (
 	cel.dev/expr v0.25.1 // indirect
-	github.com/Masterminds/semver/v3 v3.4.0 // indirect
+	dario.cat/mergo v1.0.2 // indirect
+	github.com/Masterminds/goutils v1.1.1 // indirect
+	github.com/Masterminds/semver/v3 v3.5.0 // indirect
+	github.com/Masterminds/sprig/v3 v3.3.0 // indirect
 	github.com/antlr4-go/antlr/v4 v4.13.0 // indirect
 	github.com/beorn7/perks v1.0.1 // indirect
 	github.com/blang/semver/v4 v4.0.0 // indirect
@@ -37,10 +42,16 @@ require (
 	github.com/google/pprof v0.0.0-20250403155104-27863c87afa6 // indirect
 	github.com/google/uuid v1.6.0 // indirect
 	github.com/grpc-ecosystem/grpc-gateway/v2 v2.27.7 // indirect
+	github.com/huandu/xstrings v1.5.0 // indirect
 	github.com/inconshreveable/mousetrap v1.1.0 // indirect
+	github.com/jackc/pgpassfile v1.0.0 // indirect
+	github.com/jackc/pgservicefile v0.0.0-20240606120523-5a60cdf6a761 // indirect
+	github.com/jackc/puddle/v2 v2.2.2 // indirect
 	github.com/josharian/intern v1.0.0 // indirect
 	github.com/json-iterator/go v1.1.12 // indirect
 	github.com/mailru/easyjson v0.7.7 // indirect
+	github.com/mitchellh/copystructure v1.2.0 // indirect
+	github.com/mitchellh/reflectwalk v1.0.2 // indirect
 	github.com/modern-go/concurrent v0.0.0-20180306012644-bacd9c7ef1dd // indirect
 	github.com/modern-go/reflect2 v1.0.3-0.20250322232337-35a7c28c31ee // indirect
 	github.com/munnerz/goautoneg v0.0.0-20191010083416-a7dc8b61c822 // indirect
@@ -49,8 +60,10 @@ require (
 	github.com/prometheus/client_model v0.6.2 // indirect
 	github.com/prometheus/common v0.67.5 // indirect
 	github.com/prometheus/procfs v0.19.2 // indirect
+	github.com/shopspring/decimal v1.4.0 // indirect
+	github.com/spf13/cast v1.10.0 // indirect
 	github.com/spf13/cobra v1.10.2 // indirect
-	github.com/spf13/pflag v1.0.9 // indirect
+	github.com/spf13/pflag v1.0.10 // indirect
 	github.com/stoewer/go-strcase v1.3.0 // indirect
 	github.com/x448/float16 v0.8.4 // indirect
 	go.opentelemetry.io/auto/sdk v1.2.1 // indirect
@@ -65,17 +78,18 @@ require (
 	go.uber.org/multierr v1.11.0 // indirect
 	go.uber.org/zap v1.27.1 // indirect
 	go.yaml.in/yaml/v2 v2.4.3 // indirect
-	go.yaml.in/yaml/v3 v3.0.4 // indirect
+	go.yaml.in/yaml/v3 v3.0.5 // indirect
+	golang.org/x/crypto v0.55.0 // indirect
 	golang.org/x/exp v0.0.0-20251219203646-944ab1f22d93 // indirect
-	golang.org/x/mod v0.32.0 // indirect
+	golang.org/x/mod v0.38.0 // indirect
-	golang.org/x/net v0.49.0 // indirect
+	golang.org/x/net v0.57.0 // indirect
 	golang.org/x/oauth2 v0.34.0 // indirect
-	golang.org/x/sync v0.19.0 // indirect
+	golang.org/x/sync v0.22.0 // indirect
-	golang.org/x/sys v0.40.0 // indirect
+	golang.org/x/sys v0.47.0 // indirect
-	golang.org/x/term v0.39.0 // indirect
+	golang.org/x/term v0.45.0 // indirect
-	golang.org/x/text v0.33.0 // indirect
+	golang.org/x/text v0.41.0 // indirect
 	golang.org/x/time v0.14.0 // indirect
-	golang.org/x/tools v0.41.0 // indirect
+	golang.org/x/tools v0.48.0 // indirect
 	gomodules.xyz/jsonpatch/v2 v2.4.0 // indirect
 	google.golang.org/genproto/googleapis/api v0.0.0-20260128011058-8636f8732409 // indirect
 	google.golang.org/genproto/googleapis/rpc v0.0.0-20260128011058-8636f8732409 // indirect

go.sum

@@ -1,7 +1,13 @@
 cel.dev/expr v0.25.1 h1:1KrZg61W6TWSxuNZ37Xy49ps13NUovb66QLprthtwi4=
 cel.dev/expr v0.25.1/go.mod h1:hrXvqGP6G6gyx8UAHSHJ5RGk//1Oj5nXQ2NI02Nrsg4=
-github.com/Masterminds/semver/v3 v3.4.0 h1:Zog+i5UMtVoCU8oKka5P7i9q9HgrJeGzI9SA1Xbatp0=
+dario.cat/mergo v1.0.2 h1:85+piFYR1tMbRrLcDwR18y4UKJ3aH1Tbzi24VRW1TK8=
-github.com/Masterminds/semver/v3 v3.4.0/go.mod h1:4V+yj/TJE1HU9XfppCwVMZq3I84lprf4nC11bSS5beM=
+dario.cat/mergo v1.0.2/go.mod h1:E/hbnu0NxMFBjpMIE34DRGLWqDy0g5FuKDhCb31ngxA=
+github.com/Masterminds/goutils v1.1.1 h1:5nUrii3FMTL5diU80unEVvNevw1nH4+ZV4DSLVJLSYI=
+github.com/Masterminds/goutils v1.1.1/go.mod h1:8cTjp+g8YejhMuvIA5y2vz3BpJxksy863GQaJW2MFNU=
+github.com/Masterminds/semver/v3 v3.5.0 h1:kQceYJfbupGfZOKZQg0kou0DgAKhzDg2NZPAwZ/2OOE=
+github.com/Masterminds/semver/v3 v3.5.0/go.mod h1:4V+yj/TJE1HU9XfppCwVMZq3I84lprf4nC11bSS5beM=
+github.com/Masterminds/sprig/v3 v3.3.0 h1:mQh0Yrg1XPo6vjYXgtf5OtijNAKJRNcTdOOGZe3tPhs=
+github.com/Masterminds/sprig/v3 v3.3.0/go.mod h1:Zy1iXRYNqNLUolqCpL4uhk6SHUMAOSCzdgBfDb35Lz0=
 github.com/antlr4-go/antlr/v4 v4.13.0 h1:lxCg3LAv+EUK6t1i0y1V6/SLeUi0eKEKdhQAlS8TVTI=
 github.com/antlr4-go/antlr/v4 v4.13.0/go.mod h1:pfChB/xh/Unjila75QW7+VU4TSnWnnk9UTnmpPaOR2g=
 github.com/beorn7/perks v1.0.1 h1:VlbKKnNfV8bJzeqoa4cOKqO6bYr3WgKZxO8Z16+hsOM=
@@ -26,6 +32,8 @@ github.com/evanphx/json-patch/v5 v5.9.11 h1:/8HVnzMq13/3x9TPvjG08wUGqBTmZBsCWzjT
 github.com/evanphx/json-patch/v5 v5.9.11/go.mod h1:3j+LviiESTElxA4p3EMKAB9HXj3/XEtnUf6OZxqIQTM=
 github.com/felixge/httpsnoop v1.0.4 h1:NFTV2Zj1bL4mc9sqWACXbQFVBBg2W3GPvqp8/ESS2Wg=
 github.com/felixge/httpsnoop v1.0.4/go.mod h1:m8KPJKqk1gH5J9DgRY2ASl2lWCfGKXixSwevea8zH2U=
+github.com/frankban/quicktest v1.14.6 h1:7Xjx+VpznH+oBnejlPUj8oUpdxnVs4f8XU8WnHkI4W8=
+github.com/frankban/quicktest v1.14.6/go.mod h1:4ptaffx2x8+WTWXmUCuVU6aPUX1/Mz7zb5vbUoiM6w0=
 github.com/fsnotify/fsnotify v1.9.0 h1:2Ml+OJNzbYCTzsxtv8vKSFD9PbJjmhYF14k/jKC7S9k=
 github.com/fsnotify/fsnotify v1.9.0/go.mod h1:8jBTzvmWwFyi3Pb8djgCCO5IBqzKJ/Jwo8TRcHyHii0=
 github.com/fxamacker/cbor/v2 v2.9.0 h1:NpKPmjDBgUfBms6tr6JZkTHtfFGcMKsw3eGcmD/sapM=
@@ -72,8 +80,20 @@ github.com/google/uuid v1.6.0 h1:NIvaJDMOsjHA8n1jAhLSgzrAzy1Hgr+hNrb57e+94F0=
 github.com/google/uuid v1.6.0/go.mod h1:TIyPZe4MgqvfeYDBFedMoGGpEw/LqOeaOT+nhxU+yHo=
 github.com/grpc-ecosystem/grpc-gateway/v2 v2.27.7 h1:X+2YciYSxvMQK0UZ7sg45ZVabVZBeBuvMkmuI2V3Fak=
 github.com/grpc-ecosystem/grpc-gateway/v2 v2.27.7/go.mod h1:lW34nIZuQ8UDPdkon5fmfp2l3+ZkQ2me/+oecHYLOII=
+github.com/huandu/xstrings v1.5.0 h1:2ag3IFq9ZDANvthTwTiqSSZLjDc+BedvHPAp5tJy2TI=
+github.com/huandu/xstrings v1.5.0/go.mod h1:y5/lhBue+AyNmUVz9RLU9xbLR0o4KIIExikq4ovT0aE=
 github.com/inconshreveable/mousetrap v1.1.0 h1:wN+x4NVGpMsO7ErUn/mUI3vEoE6Jt13X2s0bqwp9tc8=
 github.com/inconshreveable/mousetrap v1.1.0/go.mod h1:vpF70FUmC8bwa3OWnCshd2FqLfsEA9PFc4w1p2J65bw=
+github.com/jackc/pgpassfile v1.0.0 h1:/6Hmqy13Ss2zCq62VdNG8tM1wchn8zjSGOBJ6icpsIM=
+github.com/jackc/pgpassfile v1.0.0/go.mod h1:CEx0iS5ambNFdcRtxPj5JhEz+xB6uRky5eyVu/W2HEg=
+github.com/jackc/pgservicefile v0.0.0-20240606120523-5a60cdf6a761 h1:iCEnooe7UlwOQYpKFhBabPMi4aNAfoODPEFNiAnClxo=
+github.com/jackc/pgservicefile v0.0.0-20240606120523-5a60cdf6a761/go.mod h1:5TJZWKEWniPve33vlWYSoGYefn3gLQRzjfDlhSJ9ZKM=
+github.com/jackc/pgx/v5 v5.11.0 h1:IzBBtyK9AHqf98cctWFifYSci2hgQR/cd56wB4p+ogg=
+github.com/jackc/pgx/v5 v5.11.0/go.mod h1:mal1tBGAFfLHvZzaYh77YS/eC6IX9OWbRV1QIIM0Jn4=
+github.com/jackc/puddle/v2 v2.2.2 h1:PR8nw+E/1w0GLuRFSmiioY6UooMp6KJv0/61nB7icHo=
+github.com/jackc/puddle/v2 v2.2.2/go.mod h1:vriiEXHvEE654aYKXXjOvZM39qJ0q+azkZFrfEOc3H4=
+github.com/jackc/tern/v2 v2.4.3 h1:g293d3OZgW7OFEhsYXgEv0C21jea2boNr0VR4K5I7OY=
+github.com/jackc/tern/v2 v2.4.3/go.mod h1:rMpMuRYcff5wWLptoTSO1qcDxJ4OodysvK17i2SVBys=
 github.com/josharian/intern v1.0.0 h1:vlS4z54oSdjm0bgjRigI+G1HpF+tI+9rE5LLzOg8HmY=
 github.com/josharian/intern v1.0.0/go.mod h1:5DoeVV0s6jJacbCEi61lwdGj/aVlrQvzHFFd8Hwg//Y=
 github.com/joshdk/go-junit v1.0.0 h1:S86cUKIdwBHWwA6xCmFlf3RTLfVXYQfvanM5Uh+K6GE=
@@ -97,6 +117,10 @@ github.com/maruel/natural v1.1.1 h1:Hja7XhhmvEFhcByqDoHz9QZbkWey+COd9xWfCfn1ioo=
 github.com/maruel/natural v1.1.1/go.mod h1:v+Rfd79xlw1AgVBjbO0BEQmptqb5HvL/k9GRHB7ZKEg=
 github.com/mfridman/tparse v0.18.0 h1:wh6dzOKaIwkUGyKgOntDW4liXSo37qg5AXbIhkMV3vE=
 github.com/mfridman/tparse v0.18.0/go.mod h1:gEvqZTuCgEhPbYk/2lS3Kcxg1GmTxxU7kTC8DvP0i/A=
+github.com/mitchellh/copystructure v1.2.0 h1:vpKXTN4ewci03Vljg/q9QvCGUDttBOGBIa15WveJJGw=
+github.com/mitchellh/copystructure v1.2.0/go.mod h1:qLl+cE2AmVv+CoeAwDPye/v+N2HKCj9FbZEVFJRxO9s=
+github.com/mitchellh/reflectwalk v1.0.2 h1:G2LzWKi524PWgd3mLHV8Y5k7s6XUvT0Gef6zxSIeXaQ=
+github.com/mitchellh/reflectwalk v1.0.2/go.mod h1:mSTlrgnPZtwu0c4WaC2kGObEpuNDbx0jmZXqmk4esnw=
 github.com/modern-go/concurrent v0.0.0-20180228061459-e0a39a4cb421/go.mod h1:6dJC0mAP4ikYIbvyc7fijjWJddQyLn8Ig3JB5CqoB9Q=
 github.com/modern-go/concurrent v0.0.0-20180306012644-bacd9c7ef1dd h1:TRLaZ9cD/w8PVh93nsPXa1VrQ6jlwL5oN8l14QlcNfg=
 github.com/modern-go/concurrent v0.0.0-20180306012644-bacd9c7ef1dd/go.mod h1:6dJC0mAP4ikYIbvyc7fijjWJddQyLn8Ig3JB5CqoB9Q=
@@ -125,10 +149,15 @@ github.com/prometheus/procfs v0.19.2/go.mod h1:M0aotyiemPhBCM0z5w87kL22CxfcH05Zp
 github.com/rogpeppe/go-internal v1.14.1 h1:UQB4HGPB6osV0SQTLymcB4TgvyWu6ZyliaW0tI/otEQ=
 github.com/rogpeppe/go-internal v1.14.1/go.mod h1:MaRKkUm5W0goXpeCfT7UZI6fk/L7L7so1lCWt35ZSgc=
 github.com/russross/blackfriday/v2 v2.1.0/go.mod h1:+Rmxgy9KzJVeS9/2gXHxylqXiyQDYRxCVz55jmeOWTM=
+github.com/shopspring/decimal v1.4.0 h1:bxl37RwXBklmTi0C79JfXCEBD1cqqHt0bbgBAGFp81k=
+github.com/shopspring/decimal v1.4.0/go.mod h1:gawqmDU56v4yIKSwfBSFip1HdCCXN8/+DMd9qYNcwME=
+github.com/spf13/cast v1.10.0 h1:h2x0u2shc1QuLHfxi+cTJvs30+ZAHOGRic8uyGTDWxY=
+github.com/spf13/cast v1.10.0/go.mod h1:jNfB8QC9IA6ZuY2ZjDp0KtFO2LZZlg4S/7bzP6qqeHo=
 github.com/spf13/cobra v1.10.2 h1:DMTTonx5m65Ic0GOoRY2c16WCbHxOOw6xxezuLaBpcU=
 github.com/spf13/cobra v1.10.2/go.mod h1:7C1pvHqHw5A4vrJfjNwvOdzYu0Gml16OCs2GRiTUUS4=
-github.com/spf13/pflag v1.0.9 h1:9exaQaMOCwffKiiiYk6/BndUBv+iRViNW+4lEMi0PvY=
 github.com/spf13/pflag v1.0.9/go.mod h1:McXfInJRrz4CZXVZOBLb0bTZqETkiAhM9Iw0y3An2Bg=
+github.com/spf13/pflag v1.0.10 h1:4EBh2KAYBwaONj6b2Ye1GiHfwjqyROoF4RwYO+vPwFk=
+github.com/spf13/pflag v1.0.10/go.mod h1:McXfInJRrz4CZXVZOBLb0bTZqETkiAhM9Iw0y3An2Bg=
 github.com/stoewer/go-strcase v1.3.0 h1:g0eASXYtp+yvN9fK8sH94oCIk0fau9uV1/ZdJ0AVEzs=
 github.com/stoewer/go-strcase v1.3.0/go.mod h1:fAH5hQ5pehh+j3nZfvwdk2RgEgQjAoM8wodgtPmh1xo=
 github.com/stretchr/objx v0.1.0/go.mod h1:HFkY916IF+rwdDfMAkV7OtwuqBVzrE8GR6GFx+wExME=
@@ -137,11 +166,12 @@ github.com/stretchr/objx v0.5.0/go.mod h1:Yh+to48EsGEfYuaHDzXPcE3xhTkx73EhmCGUpE
 github.com/stretchr/objx v0.5.2 h1:xuMeJ0Sdp5ZMRXx/aWO6RZxdr3beISkG5/G/aIRr3pY=
 github.com/stretchr/objx v0.5.2/go.mod h1:FRsXN1f5AsAjCGJKqEizvkpNtU+EGNCLh3NxZ/8L+MA=
 github.com/stretchr/testify v1.3.0/go.mod h1:M5WIy9Dh21IEIfnGCwXGc5bZfKNJtfHm1UVUgZn+9EI=
+github.com/stretchr/testify v1.7.0/go.mod h1:6Fq8oRcR53rry900zMqJjRRixrwX3KX962/h/Wwjteg=
 github.com/stretchr/testify v1.7.1/go.mod h1:6Fq8oRcR53rry900zMqJjRRixrwX3KX962/h/Wwjteg=
 github.com/stretchr/testify v1.8.0/go.mod h1:yNjHg4UonilssWZ8iaSj1OCr/vHnekPRkoO+kdMU+MU=
 github.com/stretchr/testify v1.8.1/go.mod h1:w2LPCIKwWwSfY2zedu0+kehJoqGctiVI29o6fzry7u4=
-github.com/stretchr/testify v1.11.1 h1:7s2iGBzp5EwR7/aIZr8ao5+dra3wiQyKjjFuvgVKu7U=
+github.com/stretchr/testify v1.12.1 h1:EuwCh5fleGS7H32xRwO3wRGT7DxrDhLAT6FF8MpWDWE=
-github.com/stretchr/testify v1.11.1/go.mod h1:wZwfW3scLgRK+23gO65QZefKpKQRnfz6sD981Nm4B6U=
+github.com/stretchr/testify v1.12.1/go.mod h1:MDEgiDPPsNp5cuIrHPPCyornHKgEVbtFUmoNlxoYthg=
 github.com/tidwall/gjson v1.18.0 h1:FIDeeyB800efLX89e5a8Y0BNH+LOngJyGrIWxG2FKQY=
 github.com/tidwall/gjson v1.18.0/go.mod h1:/wbyibRr2FHMks5tjHJ5F8dMZh3AcwJEMf5vlfC0lxk=
 github.com/tidwall/match v1.1.1 h1:+Ho715JplO36QYgwN9PGYNhgZvoUSc9X2c80KVTi+GA=
@@ -180,28 +210,31 @@ go.uber.org/zap v1.27.1 h1:08RqriUEv8+ArZRYSTXy1LeBScaMpVSTBhCeaZYfMYc=
 go.uber.org/zap v1.27.1/go.mod h1:GB2qFLM7cTU87MWRP2mPIjqfIDnGu+VIO4V/SdhGo2E=
 go.yaml.in/yaml/v2 v2.4.3 h1:6gvOSjQoTB3vt1l+CU+tSyi/HOjfOjRLJ4YwYZGwRO0=
 go.yaml.in/yaml/v2 v2.4.3/go.mod h1:zSxWcmIDjOzPXpjlTTbAsKokqkDNAVtZO0WOMiT90s8=
-go.yaml.in/yaml/v3 v3.0.4 h1:tfq32ie2Jv2UxXFdLJdh3jXuOzWiL1fo0bu/FbuKpbc=
 go.yaml.in/yaml/v3 v3.0.4/go.mod h1:DhzuOOF2ATzADvBadXxruRBLzYTpT36CKvDb3+aBEFg=
+go.yaml.in/yaml/v3 v3.0.5 h1:N6y/pJk8buWs9NY5ERU2HSMfm+IuD/OtfdAnq6kESPw=
+go.yaml.in/yaml/v3 v3.0.5/go.mod h1:HVTZu1O7/Vkt2N+BFy8Zza+lnLsABggaTM2ZpNIGuKg=
+golang.org/x/crypto v0.55.0 h1:+KWHjbgOaAQ66dh/YlkZKHlz9ZUlq61AFirAR9ntP8M=
+golang.org/x/crypto v0.55.0/go.mod h1:uq0V9dE/fzQuJtbnL+2EhWOE63vo164FY8xqEnV9xis=
 golang.org/x/exp v0.0.0-20251219203646-944ab1f22d93 h1:fQsdNF2N+/YewlRZiricy4P1iimyPKZ/xwniHj8Q2a0=
 golang.org/x/exp v0.0.0-20251219203646-944ab1f22d93/go.mod h1:EPRbTFwzwjXj9NpYyyrvenVh9Y+GFeEvMNh7Xuz7xgU=
-golang.org/x/mod v0.32.0 h1:9F4d3PHLljb6x//jOyokMv3eX+YDeepZSEo3mFJy93c=
+golang.org/x/mod v0.38.0 h1:MECBjubtXD7yj4HrhIUcywNaGeNVUdfVnxmPajOk4yk=
-golang.org/x/mod v0.32.0/go.mod h1:SgipZ/3h2Ci89DlEtEXWUk/HteuRin+HHhN+WbNhguU=
+golang.org/x/mod v0.38.0/go.mod h1:V6Xz0pq8TQ3dGqVQ1FVHuelZpAL0uNhSkk9ogYP3c40=
-golang.org/x/net v0.49.0 h1:eeHFmOGUTtaaPSGNmjBKpbng9MulQsJURQUAfUwY++o=
+golang.org/x/net v0.57.0 h1:K5+3DljvIuDG9/Jv9rvyMywYNFCQ9RSUY6OOTTkT+tE=
-golang.org/x/net v0.49.0/go.mod h1:/ysNB2EvaqvesRkuLAyjI1ycPZlQHM3q01F02UY/MV8=
+golang.org/x/net v0.57.0/go.mod h1:KpXc8iv+r3XplLAG/f7Jsf9RPszJzdR0f58q9vGOuEU=
 golang.org/x/oauth2 v0.34.0 h1:hqK/t4AKgbqWkdkcAeI8XLmbK+4m4G5YeQRrmiotGlw=
 golang.org/x/oauth2 v0.34.0/go.mod h1:lzm5WQJQwKZ3nwavOZ3IS5Aulzxi68dUSgRHujetwEA=
-golang.org/x/sync v0.19.0 h1:vV+1eWNmZ5geRlYjzm2adRgW2/mcpevXNg50YZtPCE4=
+golang.org/x/sync v0.22.0 h1:SZjpbeLmrCk4xhRSZFNZW5gFUeCeFgjekvI/+gfScek=
-golang.org/x/sync v0.19.0/go.mod h1:9KTHXmSnoGruLpwFjVSX0lNNA75CykiMECbovNTZqGI=
+golang.org/x/sync v0.22.0/go.mod h1:9xrNwdLfx4jkKbNva9FpL6vEN7evnE43NNNJQ2LF3+0=
-golang.org/x/sys v0.40.0 h1:DBZZqJ2Rkml6QMQsZywtnjnnGvHza6BTfYFWY9kjEWQ=
+golang.org/x/sys v0.47.0 h1:o7XGOvZQCADBQQ4Y7VNq2dRWQR7JmOUW8Kxx4ZsNgWs=
-golang.org/x/sys v0.40.0/go.mod h1:OgkHotnGiDImocRcuBABYBEXf8A9a87e/uXjp9XT3ks=
+golang.org/x/sys v0.47.0/go.mod h1:4GL1E5IUh+htKOUEOaiffhrAeqysfVGipDYzABqnCmw=
-golang.org/x/term v0.39.0 h1:RclSuaJf32jOqZz74CkPA9qFuVTX7vhLlpfj/IGWlqY=
+golang.org/x/term v0.45.0 h1:NwWyBmoJCbfTHpxrWoZ9C6/VxOf7ic219I8xZZFdrf0=
-golang.org/x/term v0.39.0/go.mod h1:yxzUCTP/U+FzoxfdKmLaA0RV1WgE0VY7hXBwKtY/4ww=
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-golang.org/x/text v0.33.0 h1:B3njUFyqtHDUI5jMn1YIr5B0IE2U0qck04r6d4KPAxE=
+golang.org/x/text v0.41.0 h1:vz/seA0lnX87Othu2f/0L24RcgrXD9/YFTSuGjj3rH8=
-golang.org/x/text v0.33.0/go.mod h1:LuMebE6+rBincTi9+xWTY8TztLzKHc/9C1uBCG27+q8=
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 golang.org/x/time v0.14.0 h1:MRx4UaLrDotUKUdCIqzPC48t1Y9hANFKIRpNx+Te8PI=
 golang.org/x/time v0.14.0/go.mod h1:eL/Oa2bBBK0TkX57Fyni+NgnyQQN4LitPmob2Hjnqw4=
-golang.org/x/tools v0.41.0 h1:a9b8iMweWG+S0OBnlU36rzLp20z1Rp10w+IY2czHTQc=
+golang.org/x/tools v0.48.0 h1:3+hClM1aLL5mjMKm5ovokw9epgRXPuu2tILgismM6RE=
-golang.org/x/tools v0.41.0/go.mod h1:XSY6eDqxVNiYgezAVqqCeihT4j1U2CCsqvH3WhQpnlg=
+golang.org/x/tools v0.48.0/go.mod h1:08xX0orndb/F7jJxGDicx061tyd5pcMto75YMAXr6lk=
 gomodules.xyz/jsonpatch/v2 v2.4.0 h1:Ci3iUJyx9UeRx7CeFN8ARgGbkESwJK+KB9lLcWxY/Zw=
 gomodules.xyz/jsonpatch/v2 v2.4.0/go.mod h1:AH3dM2RI6uoBZxn3LVrfvJ3E0/9dG4cSrbuBJT4moAY=
 gonum.org/v1/gonum v0.16.0 h1:5+ul4Swaf3ESvrOnidPp4GZbzf0mxVQpDCYUQE7OJfk=

internal/postgresql/registry/migrations/001_create_registry.sql

@@ -0,0 +1,25 @@
+CREATE SCHEMA postgresql_tenant_operator;
+
+CREATE TABLE postgresql_tenant_operator.tenant_ownership (
+    instance_uid text NOT NULL,
+    tenant_uid text NOT NULL,
+    tenant_namespace text NOT NULL,
+    tenant_name text NOT NULL,
+    database_name text NOT NULL,
+    role_name text NOT NULL,
+    credential_path text NOT NULL,
+    managed boolean NOT NULL DEFAULT true,
+    created_at timestamptz NOT NULL DEFAULT clock_timestamp(),
+    updated_at timestamptz NOT NULL DEFAULT clock_timestamp(),
+    retained_at timestamptz,
+    PRIMARY KEY (instance_uid, tenant_uid),
+    UNIQUE (instance_uid, tenant_namespace, tenant_name),
+    UNIQUE (instance_uid, database_name),
+    UNIQUE (instance_uid, role_name),
+    UNIQUE (credential_path),
+    CHECK (managed OR retained_at IS NOT NULL)
+);
+
+---- create above / drop below ----
+
+DROP SCHEMA postgresql_tenant_operator CASCADE;

internal/postgresql/registry/registry.go

@@ -0,0 +1,326 @@
+/*
+Copyright 2026.
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+*/
+
+// Package registry persists controller ownership evidence in the PostgreSQL
+// management database. It deliberately does not persist reconciliation phases;
+// those belong to the Kubernetes resource status.
+package registry
+
+import (
+	"context"
+	"embed"
+	"errors"
+	"fmt"
+	"io/fs"
+	"time"
+
+	"github.com/jackc/pgx/v5"
+	"github.com/jackc/pgx/v5/pgxpool"
+	"github.com/jackc/tern/v2/migrate"
+)
+
+const migrationVersionTable = "public.postgresql_tenant_operator_schema_version"
+
+//go:embed migrations/*.sql
+var migrationFiles embed.FS
+
+var (
+	// ErrNotFound indicates that the registry has no matching ownership record.
+	ErrNotFound = errors.New("registry ownership record not found")
+	// ErrConflict indicates that a requested name or path belongs to another Tenant UID.
+	ErrConflict = errors.New("registry ownership conflict")
+)
+
+// Beginner is implemented by pgx.Conn and pgxpool.Pool.
+type Beginner interface {
+	Begin(context.Context) (pgx.Tx, error)
+}
+
+// Store manages ownership records in one PostgreSQLInstance management database.
+type Store struct {
+	db Beginner
+}
+
+// NewStore creates a registry store backed by a PostgreSQL connection or pool.
+func NewStore(db Beginner) *Store {
+	return &Store{db: db}
+}
+
+// Ownership identifies every external resource reserved for one Tenant UID.
+type Ownership struct {
+	InstanceUID     string
+	TenantUID       string
+	TenantNamespace string
+	TenantName      string
+	DatabaseName    string
+	RoleName        string
+	CredentialPath  string
+}
+
+// Record is the persisted ownership state.
+type Record struct {
+	Ownership
+	Managed    bool
+	CreatedAt  time.Time
+	UpdatedAt  time.Time
+	RetainedAt *time.Time
+}
+
+// ClaimResult reports whether Claim inserted a new record or found the same claim.
+type ClaimResult string
+
+const (
+	ClaimCreated ClaimResult = "Created"
+	ClaimOwned   ClaimResult = "Owned"
+)
+
+// Bootstrap applies all pending versioned registry migrations idempotently.
+func (s *Store) Bootstrap(ctx context.Context) error {
+	if s == nil || s.db == nil {
+		return errors.New("bootstrap registry: nil database")
+	}
+
+	return s.withMigrationConnection(ctx, func(conn *pgx.Conn) error {
+		migrations, err := fs.Sub(migrationFiles, "migrations")
+		if err != nil {
+			return fmt.Errorf("open embedded registry migrations: %w", err)
+		}
+		migrator, err := migrate.NewMigrator(ctx, conn, migrationVersionTable)
+		if err != nil {
+			return fmt.Errorf("initialize registry migrator: %w", err)
+		}
+		if err := migrator.LoadMigrations(migrations); err != nil {
+			return fmt.Errorf("load registry migrations: %w", err)
+		}
+		if err := migrator.Migrate(ctx); err != nil {
+			return fmt.Errorf("apply registry migrations: %w", err)
+		}
+		return nil
+	})
+}
+
+// Claim reserves all names for an owner. Repeating an identical claim is idempotent.
+func (s *Store) Claim(ctx context.Context, owner Ownership) (ClaimResult, error) {
+	if s == nil || s.db == nil {
+		return "", errors.New("claim registry ownership: nil database")
+	}
+	if err := owner.validate(); err != nil {
+		return "", err
+	}
+
+	tx, err := s.db.Begin(ctx)
+	if err != nil {
+		return "", fmt.Errorf("begin registry claim: %w", err)
+	}
+	defer func() { _ = tx.Rollback(ctx) }()
+
+	record, err := scanRecord(tx.QueryRow(ctx, claimStatement,
+		owner.InstanceUID,
+		owner.TenantUID,
+		owner.TenantNamespace,
+		owner.TenantName,
+		owner.DatabaseName,
+		owner.RoleName,
+		owner.CredentialPath,
+	))
+	if err != nil && !errors.Is(err, ErrNotFound) {
+		return "", fmt.Errorf("insert registry claim: %w", err)
+	}
+	if errors.Is(err, ErrNotFound) {
+		record, err = getByTenantUID(ctx, tx, owner.InstanceUID, owner.TenantUID)
+		if err != nil {
+			if errors.Is(err, ErrNotFound) {
+				return "", fmt.Errorf("%w: database, role, tenant identity, or credential path is already reserved", ErrConflict)
+			}
+			return "", err
+		}
+		if !record.equal(owner) || !record.Managed {
+			return "", fmt.Errorf("%w: database, role, tenant identity, or credential path is already reserved", ErrConflict)
+		}
+		if err := tx.Commit(ctx); err != nil {
+			return "", fmt.Errorf("commit registry claim: %w", err)
+		}
+		return ClaimOwned, nil
+	}
+
+	if err := tx.Commit(ctx); err != nil {
+		return "", fmt.Errorf("commit registry claim: %w", err)
+	}
+	return ClaimCreated, nil
+}
+
+func (s *Store) withMigrationConnection(ctx context.Context, run func(*pgx.Conn) error) error {
+	switch db := s.db.(type) {
+	case *pgx.Conn:
+		return run(db)
+	case *pgxpool.Pool:
+		conn, err := db.Acquire(ctx)
+		if err != nil {
+			return fmt.Errorf("acquire registry migration connection: %w", err)
+		}
+		defer conn.Release()
+		return run(conn.Conn())
+	default:
+		return fmt.Errorf("bootstrap registry: database type %T cannot provide a migration connection", s.db)
+	}
+}
+
+// Get returns the ownership record for an Instance UID and Tenant UID.
+func (s *Store) Get(ctx context.Context, instanceUID, tenantUID string) (Record, error) {
+	if s == nil || s.db == nil {
+		return Record{}, errors.New("get registry record: nil database")
+	}
+	if instanceUID == "" || tenantUID == "" {
+		return Record{}, errors.New("get registry record: instance UID and tenant UID are required")
+	}
+
+	tx, err := s.db.Begin(ctx)
+	if err != nil {
+		return Record{}, fmt.Errorf("begin registry read: %w", err)
+	}
+	defer func() { _ = tx.Rollback(ctx) }()
+
+	record, err := getByTenantUID(ctx, tx, instanceUID, tenantUID)
+	if err != nil {
+		return Record{}, err
+	}
+	if err := tx.Commit(ctx); err != nil {
+		return Record{}, fmt.Errorf("commit registry read: %w", err)
+	}
+	return record, nil
+}
+
+// MarkRetained changes a matching managed ownership record into an unmanaged tombstone.
+// Repeating the operation for the same tombstone is safe.
+func (s *Store) MarkRetained(ctx context.Context, owner Ownership) error {
+	return s.changeOwnership(ctx, owner, "mark registry record retained", func(ctx context.Context, tx pgx.Tx, record Record) error {
+		if !record.Managed {
+			return nil
+		}
+		tag, err := tx.Exec(ctx, markRetainedStatement, owner.InstanceUID, owner.TenantUID)
+		if err != nil {
+			return err
+		}
+		if tag.RowsAffected() != 1 {
+			return ErrConflict
+		}
+		return nil
+	})
+}
+
+// Delete removes a matching managed record after its external resources have been deleted.
+// An already absent record is treated as a successful retry; a retained record is never deleted.
+func (s *Store) Delete(ctx context.Context, owner Ownership) error {
+	return s.changeOwnership(ctx, owner, "delete registry record", func(ctx context.Context, tx pgx.Tx, record Record) error {
+		if !record.Managed {
+			return ErrConflict
+		}
+		tag, err := tx.Exec(ctx, deleteStatement, owner.InstanceUID, owner.TenantUID)
+		if err != nil {
+			return err
+		}
+		if tag.RowsAffected() != 1 {
+			return ErrConflict
+		}
+		return nil
+	})
+}
+
+func (s *Store) changeOwnership(
+	ctx context.Context,
+	owner Ownership,
+	operation string,
+	change func(context.Context, pgx.Tx, Record) error,
+) error {
+	if s == nil || s.db == nil {
+		return fmt.Errorf("%s: nil database", operation)
+	}
+	if err := owner.validate(); err != nil {
+		return fmt.Errorf("%s: %w", operation, err)
+	}
+
+	tx, err := s.db.Begin(ctx)
+	if err != nil {
+		return fmt.Errorf("begin %s: %w", operation, err)
+	}
+	defer func() { _ = tx.Rollback(ctx) }()
+
+	record, err := getByTenantUIDForUpdate(ctx, tx, owner.InstanceUID, owner.TenantUID)
+	if errors.Is(err, ErrNotFound) && operation == "delete registry record" {
+		return nil
+	}
+	if err != nil {
+		return fmt.Errorf("%s: %w", operation, err)
+	}
+	if !record.equal(owner) {
+		return fmt.Errorf("%s: %w", operation, ErrConflict)
+	}
+	if err := change(ctx, tx, record); err != nil {
+		return fmt.Errorf("%s: %w", operation, err)
+	}
+	if err := tx.Commit(ctx); err != nil {
+		return fmt.Errorf("commit %s: %w", operation, err)
+	}
+	return nil
+}
+
+func getByTenantUIDForUpdate(ctx context.Context, tx pgx.Tx, instanceUID, tenantUID string) (Record, error) {
+	return scanRecord(tx.QueryRow(ctx, getByTenantUIDForUpdateStatement, instanceUID, tenantUID))
+}
+
+func getByTenantUID(ctx context.Context, tx pgx.Tx, instanceUID, tenantUID string) (Record, error) {
+	return scanRecord(tx.QueryRow(ctx, getByTenantUIDStatement, instanceUID, tenantUID))
+}
+
+type rowScanner interface {
+	Scan(...any) error
+}
+
+func scanRecord(row rowScanner) (Record, error) {
+	var record Record
+	err := row.Scan(
+		&record.InstanceUID,
+		&record.TenantUID,
+		&record.TenantNamespace,
+		&record.TenantName,
+		&record.DatabaseName,
+		&record.RoleName,
+		&record.CredentialPath,
+		&record.Managed,
+		&record.CreatedAt,
+		&record.UpdatedAt,
+		&record.RetainedAt,
+	)
+	if errors.Is(err, pgx.ErrNoRows) {
+		return Record{}, ErrNotFound
+	}
+	if err != nil {
+		return Record{}, fmt.Errorf("read registry record: %w", err)
+	}
+	return record, nil
+}
+
+func (o Ownership) validate() error {
+	if o.InstanceUID == "" || o.TenantUID == "" || o.TenantNamespace == "" || o.TenantName == "" ||
+		o.DatabaseName == "" || o.RoleName == "" || o.CredentialPath == "" {
+		return errors.New("claim registry ownership: all ownership fields are required")
+	}
+	return nil
+}
+
+func (o Ownership) equal(other Ownership) bool {
+	return o == other
+}

internal/postgresql/registry/registry_integration_test.go

@@ -0,0 +1,132 @@
+/*
+Copyright 2026.
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+*/
+
+package registry
+
+import (
+	"context"
+	"errors"
+	"os"
+	"testing"
+
+	"github.com/jackc/pgx/v5/pgconn"
+	"github.com/jackc/pgx/v5/pgxpool"
+)
+
+func TestRegistryLifecycle(t *testing.T) {
+	dsn := os.Getenv("POSTGRES_TEST_DSN")
+	if dsn == "" {
+		t.Skip("POSTGRES_TEST_DSN is not set")
+	}
+
+	ctx := context.Background()
+	pool, err := pgxpool.New(ctx, dsn)
+	if err != nil {
+		t.Fatalf("create PostgreSQL pool: %v", err)
+	}
+	t.Cleanup(pool.Close)
+	if err := pool.Ping(ctx); err != nil {
+		t.Fatalf("ping PostgreSQL: %v", err)
+	}
+
+	dropRegistrySchema(t, ctx, pool)
+	t.Cleanup(func() { dropRegistrySchema(t, ctx, pool) })
+
+	store := NewStore(pool)
+	if err := store.Bootstrap(ctx); err != nil {
+		t.Fatalf("Bootstrap() error = %v", err)
+	}
+	if err := store.Bootstrap(ctx); err != nil {
+		t.Fatalf("second Bootstrap() error = %v", err)
+	}
+
+	owner := testOwnership("tenant-uid-1", "netbox", "netbox", "netbox", "postgresql-tenants/netbox/netbox")
+	result, err := store.Claim(ctx, owner)
+	if err != nil || result != ClaimCreated {
+		t.Fatalf("first Claim() = %q, %v; want %q, nil", result, err, ClaimCreated)
+	}
+	result, err = store.Claim(ctx, owner)
+	if err != nil || result != ClaimOwned {
+		t.Fatalf("second Claim() = %q, %v; want %q, nil", result, err, ClaimOwned)
+	}
+
+	record, err := store.Get(ctx, owner.InstanceUID, owner.TenantUID)
+	if err != nil {
+		t.Fatalf("Get() error = %v", err)
+	}
+	if record.Ownership != owner || !record.Managed || record.RetainedAt != nil {
+		t.Fatalf("Get() = %#v; want matching managed owner", record)
+	}
+
+	conflict := testOwnership("tenant-uid-2", "other", owner.DatabaseName, "other", "postgresql-tenants/other/other")
+	if _, err := store.Claim(ctx, conflict); !errors.Is(err, ErrConflict) {
+		t.Fatalf("conflicting Claim() error = %v, want ErrConflict", err)
+	}
+
+	if err := store.MarkRetained(ctx, owner); err != nil {
+		t.Fatalf("MarkRetained() error = %v", err)
+	}
+	if err := store.MarkRetained(ctx, owner); err != nil {
+		t.Fatalf("second MarkRetained() error = %v", err)
+	}
+	record, err = store.Get(ctx, owner.InstanceUID, owner.TenantUID)
+	if err != nil || record.Managed || record.RetainedAt == nil {
+		t.Fatalf("retained Get() = %#v, %v; want unmanaged tombstone", record, err)
+	}
+	if err := store.Delete(ctx, owner); !errors.Is(err, ErrConflict) {
+		t.Fatalf("Delete(retained) error = %v, want ErrConflict", err)
+	}
+	if _, err := store.Claim(ctx, owner); !errors.Is(err, ErrConflict) {
+		t.Fatalf("Claim(retained) error = %v, want ErrConflict", err)
+	}
+
+	deletable := testOwnership("tenant-uid-3", "gitea", "gitea", "gitea", "postgresql-tenants/gitea/gitea")
+	if _, err := store.Claim(ctx, deletable); err != nil {
+		t.Fatalf("Claim(deletable) error = %v", err)
+	}
+	if err := store.Delete(ctx, deletable); err != nil {
+		t.Fatalf("Delete() error = %v", err)
+	}
+	if err := store.Delete(ctx, deletable); err != nil {
+		t.Fatalf("second Delete() error = %v", err)
+	}
+	if _, err := store.Get(ctx, deletable.InstanceUID, deletable.TenantUID); !errors.Is(err, ErrNotFound) {
+		t.Fatalf("Get(deleted) error = %v, want ErrNotFound", err)
+	}
+}
+
+func testOwnership(tenantUID, tenantName, databaseName, roleName, credentialPath string) Ownership {
+	return Ownership{
+		InstanceUID:     "instance-uid-1",
+		TenantUID:       tenantUID,
+		TenantNamespace: tenantName,
+		TenantName:      tenantName,
+		DatabaseName:    databaseName,
+		RoleName:        roleName,
+		CredentialPath:  credentialPath,
+	}
+}
+
+type schemaDropper interface {
+	Exec(context.Context, string, ...any) (pgconn.CommandTag, error)
+}
+
+func dropRegistrySchema(t *testing.T, ctx context.Context, db schemaDropper) {
+	t.Helper()
+	if _, err := db.Exec(ctx, `DROP SCHEMA IF EXISTS postgresql_tenant_operator CASCADE`); err != nil {
+		t.Fatalf("drop registry schema: %v", err)
+	}
+}

internal/postgresql/registry/sql.go

@@ -0,0 +1,68 @@
+/*
+Copyright 2026.
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+*/
+
+package registry
+
+const claimStatement = `
+INSERT INTO postgresql_tenant_operator.tenant_ownership (
+    instance_uid,
+    tenant_uid,
+    tenant_namespace,
+    tenant_name,
+    database_name,
+    role_name,
+    credential_path
+) VALUES ($1, $2, $3, $4, $5, $6, $7)
+ON CONFLICT DO NOTHING
+RETURNING
+    instance_uid,
+    tenant_uid,
+    tenant_namespace,
+    tenant_name,
+    database_name,
+    role_name,
+    credential_path,
+    managed,
+    created_at,
+    updated_at,
+    retained_at`
+
+const getByTenantUIDStatement = `
+SELECT
+    instance_uid,
+    tenant_uid,
+    tenant_namespace,
+    tenant_name,
+    database_name,
+    role_name,
+    credential_path,
+    managed,
+    created_at,
+    updated_at,
+    retained_at
+FROM postgresql_tenant_operator.tenant_ownership
+WHERE instance_uid = $1 AND tenant_uid = $2`
+
+const getByTenantUIDForUpdateStatement = getByTenantUIDStatement + ` FOR UPDATE`
+
+const markRetainedStatement = `
+UPDATE postgresql_tenant_operator.tenant_ownership
+SET managed = false, retained_at = clock_timestamp(), updated_at = clock_timestamp()
+WHERE instance_uid = $1 AND tenant_uid = $2 AND managed = true`
+
+const deleteStatement = `
+DELETE FROM postgresql_tenant_operator.tenant_ownership
+WHERE instance_uid = $1 AND tenant_uid = $2 AND managed = true`