Make plugin dir match Go conventions.

This commit is contained in:
jregan
2019-04-23 23:16:23 -07:00
parent 0ac48f60a5
commit cfb0c5efad
16 changed files with 29 additions and 12 deletions

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@@ -0,0 +1,77 @@
#!/bin/bash
set -e
# Helm chart inflator
# Reads a file like this
#
# apiVersion: kustomize.config.k8s.io/v1
# kind: ChartInflatorExec
# metadata:
# name: notImportantHere
# chart: chartName
# values: /absolute/path/to/values/file
# helmBin: /absolute/path/to/helmBin
#
# fetches the given chart from stable/$chartName,
# and inflates it to stdout, using the given values file.
#
# Example execution:
# ./plugins/kustomize.config.k8s.io/v1/ChartInflatorExec configFile.yaml
# Yaml parsing is a ridiculous thing to do in bash,
# but let's try:
function parseYaml {
local file=$1
while read -r line
do
local k=${line%:*}
local v=${line#*:}
[ "$k" == "chart" ] && chartName=$v
[ "$k" == "values" ] && valuesFile=$v
[ "$k" == "helmBin" ] && helmBin=$v
done <"$file"
# Trim leading space
chartName="${chartName#"${chartName%%[![:space:]]*}"}"
valuesFile="${valuesFile#"${valuesFile%%[![:space:]]*}"}"
helmBin="${helmBin#"${helmBin%%[![:space:]]*}"}"
}
TMP_DIR=$(mktemp -d)
# Where all the files generated by 'helm init' live.
HELM_HOME=$TMP_DIR/dotHelm
# Where helm charts are unpacked.
CHART_HOME=$TMP_DIR/charts
parseYaml $1
if [ -z "$helmBin" ]; then
helmBin=/usr/local/bin/helm
fi
if [ -z "$valuesFile" ]; then
valuesFile=$CHART_HOME/$chartName/values.yaml
fi
function doHelm {
$helmBin --home $HELM_HOME $@
}
# The init command is extremely chatty
doHelm init --client-only >& /dev/null
doHelm fetch --untar \
--untardir $CHART_HOME \
stable/$chartName
doHelm template \
--values $valuesFile \
$CHART_HOME/$chartName
/bin/rm -rf $TMP_DIR

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@@ -0,0 +1,62 @@
// +build plugin
package main
import (
"fmt"
"sigs.k8s.io/kustomize/pkg/ifc"
"sigs.k8s.io/kustomize/pkg/resmap"
"sigs.k8s.io/kustomize/pkg/types"
)
type plugin struct {
ldr ifc.Loader
rf *resmap.Factory
options types.GeneratorOptions
args types.SecretArgs
}
var KustomizePlugin plugin
func (p *plugin) Config(
ldr ifc.Loader, rf *resmap.Factory, k ifc.Kunstructured) error {
p.ldr = ldr
p.rf = rf
var err error
// TODO: Should validate this.
p.args.Behavior, err = k.GetFieldValue("behavior")
if err != nil {
return err
}
envFiles, err := k.GetStringSlice("envFiles")
if err != nil {
return err
}
if len(envFiles) > 2 {
// TODO: refactor to allow this
return fmt.Errorf("cannot yet accept more than one envFile")
}
if len(envFiles) > 0 {
p.args.EnvSource = envFiles[0]
}
p.args.FileSources, err = k.GetStringSlice("valueFiles")
if err != nil {
return err
}
p.args.LiteralSources, err = k.GetStringSlice("literals")
if err != nil {
return err
}
return nil
}
func (p *plugin) Generate() (resmap.ResMap, error) {
argsList := make([]types.SecretArgs, 1)
argsList[0] = p.args
return p.rf.NewResMapFromSecretArgs(p.ldr, &p.options, argsList)
}