feat: Add acceptance tests

.github/workflows/acceptance-tests.yml

@@ -0,0 +1,23 @@
+name: Acceptance tests
+on:
+  push:
+    branches:
+      - main
+  pull_request:
+    branches:
+      - main
+
+jobs:
+  build:
+    name: build
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout
+        uses: actions/checkout@a5ac7e51b41094c92402da3b24376905380afc29 # v4.1.6
+      - name: Call Dagger Function
+        uses: dagger/dagger-for-github@53a90075b0001a5d43da1f8bb5f3b6dba9c33c74 # v5.6.0
+        with:
+          version: "0.11.9"
+          verb: call
+          dagger-flags: "--silent"
+          args: "acceptance-tests --root-dir .:source-files --acceptance-tests-dir ./acceptance-tests"

Makefile

@@ -1,4 +1,4 @@
-.PHONY: lint test static install uninstall cross
+.PHONY: lint test static install uninstall cross acceptance-tests
 GOPATH := $(shell go env GOPATH)
 VERSION := $(shell git describe --tags --dirty --always)
 BIN_DIR := $(GOPATH)/bin
@@ -14,6 +14,9 @@ lint: $(GOLINTER)
 test:
 	go test ./... -bench=. -benchmem
 
+acceptance-tests:
+	dagger call acceptance-tests --root-dir .:source-files --acceptance-tests-dir ./acceptance-tests
+
 # Compilation
 dev:
 	go build -ldflags "-X main.Version=dev-${VERSION}" ./cmd/tk

acceptance-tests/README.md

@@ -0,0 +1,11 @@
+# Acceptance tests
+
+These tests aim to cover some e2e use-cases like creating a new Tanka
+environment and pushing it up to an ephemeral Kubernetes cluster.
+
+To run these, you need to have the Dagger CLI >= 0.11 installed. Then you can
+execute the tests like this from the *root directory* of the project:
+
+```
+make acceptance-tests
+```

acceptance-tests/apply_test.go

@@ -0,0 +1,32 @@
+package main
+
+import (
+	"fmt"
+	"os"
+	"path/filepath"
+	"testing"
+
+	"github.com/stretchr/testify/require"
+	corev1 "k8s.io/api/core/v1"
+	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
+)
+
+func TestApplyEnvironment(t *testing.T) {
+	tmpDir := t.TempDir()
+	runCmd(t, tmpDir, "tk", "init")
+	runCmd(t, tmpDir, "tk", "env", "set", "environments/default", "--server=https://kubernetes:6443")
+	cm := corev1.ConfigMap{
+		TypeMeta: metav1.TypeMeta{
+			Kind:       "ConfigMap",
+			APIVersion: "v1",
+		},
+		ObjectMeta: metav1.ObjectMeta{
+			Name: "demo",
+		},
+	}
+	content := fmt.Sprintf(`{config: %s}`, marshalToJSON(t, cm))
+	require.NoError(t, os.WriteFile(filepath.Join(tmpDir, "environments/default/main.jsonnet"), []byte(content), 0600))
+	runCmd(t, tmpDir, "tk", "apply", "environments/default", "--auto-approve", "always")
+	// Now that the configmap should be there, let's verify it
+	runCmd(t, tmpDir, "kubectl", "--namespace", "default", "get", "configmap", "demo")
+}

acceptance-tests/export_test.go

@@ -0,0 +1,30 @@
+package main
+
+import (
+	"os"
+	"path/filepath"
+	"testing"
+
+	"github.com/stretchr/testify/require"
+)
+
+func TestExportEnvironment(t *testing.T) {
+	tmpDir := t.TempDir()
+	runCmd(t, tmpDir, "tk", "init")
+	runCmd(t, tmpDir, "tk", "env", "set", "environments/default", "--server=https://kubernetes:6443")
+	content := `
+	{
+		config: {
+	         apiVersion: "v1",
+	         kind: "ConfigMap",
+	         metadata : {
+	              name: "demo",
+	         },
+	         data: {},
+		},
+	}
+`
+	require.NoError(t, os.WriteFile(filepath.Join(tmpDir, "environments/default/main.jsonnet"), []byte(content), 0600))
+	runCmd(t, tmpDir, "tk", "export", "export", "environments/default")
+	require.FileExists(t, filepath.Join(tmpDir, "export/v1.ConfigMap-demo.yaml"))
+}

acceptance-tests/go.mod

@@ -0,0 +1,30 @@
+module github.com/grafana/tanka/acceptance-tests
+
+go 1.22.4
+
+require (
+	github.com/stretchr/testify v1.9.0
+	k8s.io/api v0.30.2
+	k8s.io/apimachinery v0.30.2
+	sigs.k8s.io/yaml v1.3.0
+)
+
+require (
+	github.com/davecgh/go-spew v1.1.1 // indirect
+	github.com/go-logr/logr v1.4.1 // indirect
+	github.com/gogo/protobuf v1.3.2 // indirect
+	github.com/google/gofuzz v1.2.0 // indirect
+	github.com/json-iterator/go v1.1.12 // indirect
+	github.com/modern-go/concurrent v0.0.0-20180306012644-bacd9c7ef1dd // indirect
+	github.com/modern-go/reflect2 v1.0.2 // indirect
+	github.com/pmezard/go-difflib v1.0.0 // indirect
+	golang.org/x/net v0.23.0 // indirect
+	golang.org/x/text v0.14.0 // indirect
+	gopkg.in/inf.v0 v0.9.1 // indirect
+	gopkg.in/yaml.v2 v2.4.0 // indirect
+	gopkg.in/yaml.v3 v3.0.1 // indirect
+	k8s.io/klog/v2 v2.120.1 // indirect
+	k8s.io/utils v0.0.0-20230726121419-3b25d923346b // indirect
+	sigs.k8s.io/json v0.0.0-20221116044647-bc3834ca7abd // indirect
+	sigs.k8s.io/structured-merge-diff/v4 v4.4.1 // indirect
+)

acceptance-tests/go.sum

@@ -0,0 +1,91 @@
+github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
+github.com/davecgh/go-spew v1.1.1 h1:vj9j/u1bqnvCEfJOwUhtlOARqs3+rkHYY13jYWTU97c=
+github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
+github.com/go-logr/logr v1.4.1 h1:pKouT5E8xu9zeFC39JXRDukb6JFQPXM5p5I91188VAQ=
+github.com/go-logr/logr v1.4.1/go.mod h1:9T104GzyrTigFIr8wt5mBrctHMim0Nb2HLGrmQ40KvY=
+github.com/gogo/protobuf v1.3.2 h1:Ov1cvc58UF3b5XjBnZv7+opcTcQFZebYjWzi34vdm4Q=
+github.com/gogo/protobuf v1.3.2/go.mod h1:P1XiOD3dCwIKUDQYPy72D8LYyHL2YPYrpS2s69NZV8Q=
+github.com/google/go-cmp v0.5.9/go.mod h1:17dUlkBOakJ0+DkrSSNjCkIjxS6bF9zb3elmeNGIjoY=
+github.com/google/go-cmp v0.6.0 h1:ofyhxvXcZhMsU5ulbFiLKl/XBFqE1GSq7atu8tAmTRI=
+github.com/google/go-cmp v0.6.0/go.mod h1:17dUlkBOakJ0+DkrSSNjCkIjxS6bF9zb3elmeNGIjoY=
+github.com/google/gofuzz v1.0.0/go.mod h1:dBl0BpW6vV/+mYPU4Po3pmUjxk6FQPldtuIdl/M65Eg=
+github.com/google/gofuzz v1.2.0 h1:xRy4A+RhZaiKjJ1bPfwQ8sedCA+YS2YcCHW6ec7JMi0=
+github.com/google/gofuzz v1.2.0/go.mod h1:dBl0BpW6vV/+mYPU4Po3pmUjxk6FQPldtuIdl/M65Eg=
+github.com/json-iterator/go v1.1.12 h1:PV8peI4a0ysnczrg+LtxykD8LfKY9ML6u2jnxaEnrnM=
+github.com/json-iterator/go v1.1.12/go.mod h1:e30LSqwooZae/UwlEbR2852Gd8hjQvJoHmT4TnhNGBo=
+github.com/kisielk/errcheck v1.5.0/go.mod h1:pFxgyoBC7bSaBwPgfKdkLd5X25qrDl4LWUI2bnpBCr8=
+github.com/kisielk/gotool v1.0.0/go.mod h1:XhKaO+MFFWcvkIS/tQcRk01m1F5IRFswLeQ+oQHNcck=
+github.com/kr/pretty v0.3.1 h1:flRD4NNwYAUpkphVc1HcthR4KEIFJ65n8Mw5qdRn3LE=
+github.com/kr/pretty v0.3.1/go.mod h1:hoEshYVHaxMs3cyo3Yncou5ZscifuDolrwPKZanG3xk=
+github.com/kr/text v0.2.0 h1:5Nx0Ya0ZqY2ygV366QzturHI13Jq95ApcVaJBhpS+AY=
+github.com/kr/text v0.2.0/go.mod h1:eLer722TekiGuMkidMxC/pM04lWEeraHUUmBw8l2grE=
+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=
+github.com/modern-go/reflect2 v1.0.2 h1:xBagoLtFs94CBntxluKeaWgTMpvLxC4ur3nMaC9Gz0M=
+github.com/modern-go/reflect2 v1.0.2/go.mod h1:yWuevngMOJpCy52FWWMvUC8ws7m/LJsjYzDa0/r8luk=
+github.com/pmezard/go-difflib v1.0.0 h1:4DBwDE0NGyQoBHbLQYPwSUPoCMWR5BEzIk/f1lZbAQM=
+github.com/pmezard/go-difflib v1.0.0/go.mod h1:iKH77koFhYxTK1pcRnkKkqfTogsbg7gZNVY4sRDYZ/4=
+github.com/rogpeppe/go-internal v1.10.0 h1:TMyTOH3F/DB16zRVcYyreMH6GnZZrwQVAoYjRBZyWFQ=
+github.com/rogpeppe/go-internal v1.10.0/go.mod h1:UQnix2H7Ngw/k4C5ijL5+65zddjncjaFoBhdsK/akog=
+github.com/spf13/pflag v1.0.5 h1:iy+VFUOCP1a+8yFto/drg2CJ5u0yRoB7fZw3DKv/JXA=
+github.com/spf13/pflag v1.0.5/go.mod h1:McXfInJRrz4CZXVZOBLb0bTZqETkiAhM9Iw0y3An2Bg=
+github.com/stretchr/objx v0.1.0/go.mod h1:HFkY916IF+rwdDfMAkV7OtwuqBVzrE8GR6GFx+wExME=
+github.com/stretchr/testify v1.3.0/go.mod h1:M5WIy9Dh21IEIfnGCwXGc5bZfKNJtfHm1UVUgZn+9EI=
+github.com/stretchr/testify v1.9.0 h1:HtqpIVDClZ4nwg75+f6Lvsy/wHu+3BoSGCbBAcpTsTg=
+github.com/stretchr/testify v1.9.0/go.mod h1:r2ic/lqez/lEtzL7wO/rwa5dbSLXVDPFyf8C91i36aY=
+github.com/yuin/goldmark v1.1.27/go.mod h1:3hX8gzYuyVAZsxl0MRgGTJEmQBFcNTphYh9decYSb74=
+github.com/yuin/goldmark v1.2.1/go.mod h1:3hX8gzYuyVAZsxl0MRgGTJEmQBFcNTphYh9decYSb74=
+golang.org/x/crypto v0.0.0-20190308221718-c2843e01d9a2/go.mod h1:djNgcEr1/C05ACkg1iLfiJU5Ep61QUkGW8qpdssI0+w=
+golang.org/x/crypto v0.0.0-20191011191535-87dc89f01550/go.mod h1:yigFU9vqHzYiE8UmvKecakEJjdnWj3jj499lnFckfCI=
+golang.org/x/crypto v0.0.0-20200622213623-75b288015ac9/go.mod h1:LzIPMQfyMNhhGPhUkYOs5KpL4U8rLKemX1yGLhDgUto=
+golang.org/x/mod v0.2.0/go.mod h1:s0Qsj1ACt9ePp/hMypM3fl4fZqREWJwdYDEqhRiZZUA=
+golang.org/x/mod v0.3.0/go.mod h1:s0Qsj1ACt9ePp/hMypM3fl4fZqREWJwdYDEqhRiZZUA=
+golang.org/x/net v0.0.0-20190404232315-eb5bcb51f2a3/go.mod h1:t9HGtf8HONx5eT2rtn7q6eTqICYqUVnKs3thJo3Qplg=
+golang.org/x/net v0.0.0-20190620200207-3b0461eec859/go.mod h1:z5CRVTTTmAJ677TzLLGU+0bjPO0LkuOLi4/5GtJWs/s=
+golang.org/x/net v0.0.0-20200226121028-0de0cce0169b/go.mod h1:z5CRVTTTmAJ677TzLLGU+0bjPO0LkuOLi4/5GtJWs/s=
+golang.org/x/net v0.0.0-20201021035429-f5854403a974/go.mod h1:sp8m0HH+o8qH0wwXwYZr8TS3Oi6o0r6Gce1SSxlDquU=
+golang.org/x/net v0.23.0 h1:7EYJ93RZ9vYSZAIb2x3lnuvqO5zneoD6IvWjuhfxjTs=
+golang.org/x/net v0.23.0/go.mod h1:JKghWKKOSdJwpW2GEx0Ja7fmaKnMsbu+MWVZTokSYmg=
+golang.org/x/sync v0.0.0-20190423024810-112230192c58/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
+golang.org/x/sync v0.0.0-20190911185100-cd5d95a43a6e/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
+golang.org/x/sync v0.0.0-20201020160332-67f06af15bc9/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
+golang.org/x/sys v0.0.0-20190215142949-d0b11bdaac8a/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
+golang.org/x/sys v0.0.0-20190412213103-97732733099d/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
+golang.org/x/sys v0.0.0-20200930185726-fdedc70b468f/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
+golang.org/x/text v0.3.0/go.mod h1:NqM8EUOU14njkJ3fqMW+pc6Ldnwhi/IjpwHt7yyuwOQ=
+golang.org/x/text v0.3.3/go.mod h1:5Zoc/QRtKVWzQhOtBMvqHzDpF6irO9z98xDceosuGiQ=
+golang.org/x/text v0.14.0 h1:ScX5w1eTa3QqT8oi6+ziP7dTV1S2+ALU0bI+0zXKWiQ=
+golang.org/x/text v0.14.0/go.mod h1:18ZOQIKpY8NJVqYksKHtTdi31H5itFRjB5/qKTNYzSU=
+golang.org/x/tools v0.0.0-20180917221912-90fa682c2a6e/go.mod h1:n7NCudcB/nEzxVGmLbDWY5pfWTLqBcC2KZ6jyYvM4mQ=
+golang.org/x/tools v0.0.0-20191119224855-298f0cb1881e/go.mod h1:b+2E5dAYhXwXZwtnZ6UAqBI28+e2cm9otk0dWdXHAEo=
+golang.org/x/tools v0.0.0-20200619180055-7c47624df98f/go.mod h1:EkVYQZoAsY45+roYkvgYkIh4xh/qjgUK9TdY2XT94GE=
+golang.org/x/tools v0.0.0-20210106214847-113979e3529a/go.mod h1:emZCQorbCU4vsT4fOWvOPXz4eW1wZW4PmDk9uLelYpA=
+golang.org/x/xerrors v0.0.0-20190717185122-a985d3407aa7/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
+golang.org/x/xerrors v0.0.0-20191011141410-1b5146add898/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
+golang.org/x/xerrors v0.0.0-20191204190536-9bdfabe68543/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
+golang.org/x/xerrors v0.0.0-20200804184101-5ec99f83aff1/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
+gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
+gopkg.in/check.v1 v1.0.0-20201130134442-10cb98267c6c h1:Hei/4ADfdWqJk1ZMxUNpqntNwaWcugrBjAiHlqqRiVk=
+gopkg.in/check.v1 v1.0.0-20201130134442-10cb98267c6c/go.mod h1:JHkPIbrfpd72SG/EVd6muEfDQjcINNoR0C8j2r3qZ4Q=
+gopkg.in/inf.v0 v0.9.1 h1:73M5CoZyi3ZLMOyDlQh031Cx6N9NDJ2Vvfl76EDAgDc=
+gopkg.in/inf.v0 v0.9.1/go.mod h1:cWUDdTG/fYaXco+Dcufb5Vnc6Gp2YChqWtbxRZE0mXw=
+gopkg.in/yaml.v2 v2.2.8/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
+gopkg.in/yaml.v2 v2.4.0 h1:D8xgwECY7CYvx+Y2n4sBz93Jn9JRvxdiyyo8CTfuKaY=
+gopkg.in/yaml.v2 v2.4.0/go.mod h1:RDklbk79AGWmwhnvt/jBztapEOGDOx6ZbXqjP6csGnQ=
+gopkg.in/yaml.v3 v3.0.1 h1:fxVm/GzAzEWqLHuvctI91KS9hhNmmWOoWu0XTYJS7CA=
+gopkg.in/yaml.v3 v3.0.1/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
+k8s.io/api v0.30.2 h1:+ZhRj+28QT4UOH+BKznu4CBgPWgkXO7XAvMcMl0qKvI=
+k8s.io/api v0.30.2/go.mod h1:ULg5g9JvOev2dG0u2hig4Z7tQ2hHIuS+m8MNZ+X6EmI=
+k8s.io/apimachinery v0.30.2 h1:fEMcnBj6qkzzPGSVsAZtQThU62SmQ4ZymlXRC5yFSCg=
+k8s.io/apimachinery v0.30.2/go.mod h1:iexa2somDaxdnj7bha06bhb43Zpa6eWH8N8dbqVjTUc=
+k8s.io/klog/v2 v2.120.1 h1:QXU6cPEOIslTGvZaXvFWiP9VKyeet3sawzTOvdXb4Vw=
+k8s.io/klog/v2 v2.120.1/go.mod h1:3Jpz1GvMt720eyJH1ckRHK1EDfpxISzJ7I9OYgaDtPE=
+k8s.io/utils v0.0.0-20230726121419-3b25d923346b h1:sgn3ZU783SCgtaSJjpcVVlRqd6GSnlTLKgpAAttJvpI=
+k8s.io/utils v0.0.0-20230726121419-3b25d923346b/go.mod h1:OLgZIPagt7ERELqWJFomSt595RzquPNLL48iOWgYOg0=
+sigs.k8s.io/json v0.0.0-20221116044647-bc3834ca7abd h1:EDPBXCAspyGV4jQlpZSudPeMmr1bNJefnuqLsRAsHZo=
+sigs.k8s.io/json v0.0.0-20221116044647-bc3834ca7abd/go.mod h1:B8JuhiUyNFVKdsE8h686QcCxMaH6HrOAZj4vswFpcB0=
+sigs.k8s.io/structured-merge-diff/v4 v4.4.1 h1:150L+0vs/8DA78h1u02ooW1/fFq/Lwr+sGiqlzvrtq4=
+sigs.k8s.io/structured-merge-diff/v4 v4.4.1/go.mod h1:N8hJocpFajUSSeSJ9bOZ77VzejKZaXsTtZo4/u7Io08=
+sigs.k8s.io/yaml v1.3.0 h1:a2VclLzOGrwOHDiV8EfBGhvjHvP46CtW5j6POvhYGGo=
+sigs.k8s.io/yaml v1.3.0/go.mod h1:GeOyir5tyXNByN85N/dRIT9es5UQNerPYEKK56eTBm8=

acceptance-tests/help_test.go

@@ -0,0 +1,12 @@
+package main
+
+import (
+	"testing"
+
+	"github.com/stretchr/testify/require"
+)
+
+func TestHelp(t *testing.T) {
+	output := getCmdOutput(t, "/", "tk", "--help")
+	require.Contains(t, output, "Usage")
+}

acceptance-tests/helpers_test.go

@@ -0,0 +1,36 @@
+package main
+
+import (
+	"encoding/json"
+	"os"
+	"os/exec"
+	"testing"
+
+	"github.com/stretchr/testify/require"
+)
+
+func runCmd(t *testing.T, dir string, cmd string, args ...string) {
+	t.Helper()
+	c := exec.Command(cmd, args...)
+	c.Dir = dir
+	c.Stdout = os.Stdout
+	c.Stderr = os.Stderr
+	err := c.Run()
+	require.NoError(t, err)
+}
+
+func getCmdOutput(t *testing.T, dir string, cmd string, args ...string) string {
+	t.Helper()
+	c := exec.Command(cmd, args...)
+	c.Dir = dir
+	output, err := c.CombinedOutput()
+	require.NoError(t, err)
+	return string(output)
+}
+
+func marshalToJSON(t *testing.T, obj any) string {
+	t.Helper()
+	output, err := json.Marshal(obj)
+	require.NoError(t, err)
+	return string(output)
+}

acceptance-tests/show_test.go

@@ -0,0 +1,39 @@
+package main
+
+import (
+	"fmt"
+	"os"
+	"path/filepath"
+	"testing"
+
+	"github.com/stretchr/testify/require"
+	corev1 "k8s.io/api/core/v1"
+	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
+	"sigs.k8s.io/yaml"
+)
+
+func TestShow(t *testing.T) {
+	tmpDir := t.TempDir()
+	runCmd(t, tmpDir, "tk", "init")
+	runCmd(t, tmpDir, "tk", "env", "set", "environments/default", "--server=https://kubernetes:6443")
+	cm := corev1.ConfigMap{
+		TypeMeta: metav1.TypeMeta{
+			Kind:       "ConfigMap",
+			APIVersion: "v1",
+		},
+		ObjectMeta: metav1.ObjectMeta{
+			Name: "demo",
+		},
+	}
+	content := fmt.Sprintf(`{config: %s}`, marshalToJSON(t, cm))
+
+	require.NoError(t, os.WriteFile(filepath.Join(tmpDir, "environments/default/main.jsonnet"), []byte(content), 0600))
+	output := getCmdOutput(t, tmpDir, "tk", "show", "--dangerous-allow-redirect", "environments/default")
+	outputObject := corev1.ConfigMap{}
+	require.NoError(t, yaml.Unmarshal([]byte(output), &outputObject))
+
+	// Tanka also injects the namespace:
+	cm.ObjectMeta.SetNamespace("default")
+
+	require.Equal(t, cm, outputObject)
+}

dagger.json

@@ -0,0 +1,25 @@
+{
+  "name": "tanka",
+  "sdk": "go",
+  "dependencies": [
+    {
+      "name": "k3s",
+      "source": "github.com/marcosnils/daggerverse/k3s@5e572e251b4a7f1383ca8043da88b724f8f30e64"
+    }
+  ],
+  "source": "dagger",
+  "engineVersion": "v0.11.7",
+  "views": [
+    {
+      "name": "source-files",
+      "patterns": [
+        "go.mod",
+        "go.sum",
+        "Dockerfile",
+        "Makefile",
+        "cmd",
+        "pkg"
+      ]
+    }
+  ]
+}

dagger/.gitattributes

@@ -0,0 +1,4 @@
+/dagger.gen.go linguist-generated
+/internal/dagger/** linguist-generated
+/internal/querybuilder/** linguist-generated
+/internal/telemetry/** linguist-generated

dagger/.gitignore

@@ -0,0 +1,4 @@
+/dagger.gen.go
+/internal/dagger
+/internal/querybuilder
+/internal/telemetry

dagger/README.md

@@ -0,0 +1,5 @@
+# Dagger setup for Tanka development
+
+This module includes dagger functions to be used during development of Tanka.
+To work on these functions, please run `dagger develop` in the root directory
+of the project, which generates the required libraries.