litmus/litmus-portal/graphql-server/utils/misc.go

74 lines
2.8 KiB
Go

package utils
import (
"bufio"
"math/rand"
"net/http"
"os"
"strings"
"github.com/litmuschaos/litmus/litmus-portal/graphql-server/pkg/types"
)
//WriteHeaders adds important headers to API responses
func WriteHeaders(w *http.ResponseWriter, statusCode int) {
(*w).Header().Set("Content-Type", "application/json; charset=utf-8")
(*w).Header().Set("Access-Control-Allow-Origin", "*")
(*w).WriteHeader(statusCode)
}
//RandomString generates random strings, can be used to create ids or random secrets
func RandomString(n int) string {
var letters = []rune("abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789-")
s := make([]rune, n)
for i := range s {
s[i] = letters[rand.Intn(len(letters))]
}
return string(s)
}
//ManifestParser parses manifests yaml and generates dynamic manifest with specified keys
func ManifestParser(id, key, template string, subscriberConfig *types.SubscriberConfigurationVars) ([]byte, error) {
file, err := os.Open(template)
if err != nil {
return []byte{}, err
}
defer file.Close()
scanner := bufio.NewScanner(file)
var lines []string
for scanner.Scan() {
line := scanner.Text()
if strings.Contains(line, "#{CID}") {
line = strings.Replace(line, "#{CID}", id, -1)
} else if strings.Contains(line, "#{KEY}") {
line = strings.Replace(line, "#{KEY}", key, -1)
} else if strings.Contains(line, "#{SERVER}") {
line = strings.Replace(line, "#{SERVER}", subscriberConfig.GQLServerURI, -1)
} else if strings.Contains(line, "#{SUB-IMAGE}") {
line = strings.Replace(line, "#{SUB-IMAGE}", subscriberConfig.SubscriberImage, -1)
} else if strings.Contains(line, "#{AGENT-NAMESPACE}") {
line = strings.Replace(line, "#{AGENT-NAMESPACE}", subscriberConfig.AgentNamespace, -1)
} else if strings.Contains(line, "#{AGENT-SCOPE}") {
line = strings.Replace(line, "#{AGENT-SCOPE}", subscriberConfig.AgentScope, -1)
} else if strings.Contains(line, "#{ARGO-SERVER}") {
line = strings.Replace(line, "#{ARGO-SERVER}", subscriberConfig.ArgoServerImage, -1)
} else if strings.Contains(line, "#{ARGO-WORKFLOW-CONTROLLER}") {
line = strings.Replace(line, "#{ARGO-WORKFLOW-CONTROLLER}", subscriberConfig.WorkflowControllerImage, -1)
} else if strings.Contains(line, "#{LITMUS-CHAOS-OPERATOR}") {
line = strings.Replace(line, "#{LITMUS-CHAOS-OPERATOR}", subscriberConfig.ChaosOperatorImage, -1)
} else if strings.Contains(line, "#{ARGO-WORKFLOW-EXECUTOR}") {
line = strings.Replace(line, "#{ARGO-WORKFLOW-EXECUTOR}", subscriberConfig.WorkflowExecutorImage, -1)
} else if strings.Contains(line, "#{LITMUS-CHAOS-RUNNER}") {
line = strings.Replace(line, "#{LITMUS-CHAOS-RUNNER}", subscriberConfig.ChaosRunnerImage, -1)
}
lines = append(lines, line)
}
if err := scanner.Err(); err != nil {
return []byte{}, err
}
return []byte(strings.Join(lines, "\n")), nil
}