github.com/jmrodri/operator-sdk@v0.5.0/pkg/scaffold/cr.go (about)

     1  // Copyright 2018 The Operator-SDK Authors
     2  //
     3  // Licensed under the Apache License, Version 2.0 (the "License");
     4  // you may not use this file except in compliance with the License.
     5  // You may obtain a copy of the License at
     6  //
     7  //     http://www.apache.org/licenses/LICENSE-2.0
     8  //
     9  // Unless required by applicable law or agreed to in writing, software
    10  // distributed under the License is distributed on an "AS IS" BASIS,
    11  // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    12  // See the License for the specific language governing permissions and
    13  // limitations under the License.
    14  
    15  package scaffold
    16  
    17  import (
    18  	"fmt"
    19  	"path/filepath"
    20  	"strings"
    21  	"text/template"
    22  
    23  	"github.com/operator-framework/operator-sdk/pkg/scaffold/input"
    24  )
    25  
    26  // CR is the input needed to generate a deploy/crds/<group>_<version>_<kind>_cr.yaml file
    27  type CR struct {
    28  	input.Input
    29  
    30  	// Resource defines the inputs for the new custom resource
    31  	Resource *Resource
    32  
    33  	// Spec is a custom spec for the CR. It will be automatically indented. If
    34  	// unset, a default spec will be created.
    35  	Spec string
    36  }
    37  
    38  func (s *CR) GetInput() (input.Input, error) {
    39  	if s.Path == "" {
    40  		fileName := fmt.Sprintf("%s_%s_%s_cr.yaml",
    41  			strings.ToLower(s.Resource.Group),
    42  			strings.ToLower(s.Resource.Version),
    43  			s.Resource.LowerKind)
    44  		s.Path = filepath.Join(CRDsDir, fileName)
    45  	}
    46  	s.TemplateBody = crTemplate
    47  	if s.TemplateFuncs == nil {
    48  		s.TemplateFuncs = template.FuncMap{}
    49  	}
    50  	s.TemplateFuncs["indent"] = indent
    51  	return s.Input, nil
    52  }
    53  
    54  func indent(spaces int, v string) string {
    55  	pad := strings.Repeat(" ", spaces)
    56  	return pad + strings.Replace(v, "\n", "\n"+pad, -1)
    57  }
    58  
    59  const crTemplate = `apiVersion: {{ .Resource.APIVersion }}
    60  kind: {{ .Resource.Kind }}
    61  metadata:
    62    name: example-{{ .Resource.LowerKind }}
    63  spec:
    64  {{- with .Spec }}
    65  {{ . | indent 2 }}
    66  {{- else }}
    67    # Add fields here
    68    size: 3
    69  {{- end }}
    70  `