implemented spawning of new agents

split pipeline

internal/woodpecker/agent.go

@@ -0,0 +1,60 @@
+package woodpecker
+
+import (
+	"encoding/json"
+	"errors"
+	"fmt"
+	"net/http"
+
+	"git.uploadfilter24.eu/covidnetes/woodpecker-autoscaler/internal/config"
+	"git.uploadfilter24.eu/covidnetes/woodpecker-autoscaler/internal/models"
+)
+
+func DecomAgent(cfg *config.Config, agentId int) error {
+	apiRoute := fmt.Sprintf("%s/api/agents/%d", cfg.WoodpeckerInstance, agentId)
+	req, err := http.NewRequest("DELETE", apiRoute, nil)
+	if err != nil {
+		return errors.New(fmt.Sprintf("Could not create delete request: %s", err.Error()))
+	}
+	req.Header.Set("Accept", "text/plain")
+	req.Header.Set("Authorization", fmt.Sprintf("Bearer %s", cfg.WoodpeckerApiToken))
+
+	resp, err := http.DefaultClient.Do(req)
+	if err != nil {
+		return errors.New(fmt.Sprintf("Could not delete agent: %s", err.Error()))
+	}
+	defer resp.Body.Close()
+	return nil
+}
+
+func GetAgentIdByName(cfg *config.Config, name string) (int, error) {
+	apiRoute := fmt.Sprintf("%s/api/agents?page=1&perPage=100", cfg.WoodpeckerInstance)
+	req, err := http.NewRequest("GET", apiRoute, nil)
+	if err != nil {
+		return 0, errors.New(fmt.Sprintf("Could not create agent query request: %s", err.Error()))
+	}
+	req.Header.Set("Accept", "application/json")
+	req.Header.Set("Authorization", fmt.Sprintf("Bearer %s", cfg.WoodpeckerApiToken))
+
+	resp, err := http.DefaultClient.Do(req)
+	if err != nil {
+		return 0, errors.New(fmt.Sprintf("Could not query agent list: %s", err.Error()))
+	}
+	defer resp.Body.Close()
+
+	if resp.StatusCode != http.StatusOK {
+		return 0, errors.New(fmt.Sprintf("Invalid status code from API: %d", resp.StatusCode))
+	}
+	agentList := new(models.AgentList)
+	err = json.NewDecoder(resp.Body).Decode(agentList)
+	if err != nil {
+		return 0, errors.New(fmt.Sprintf("Could not unmarshal api response: %s", err.Error()))
+	}
+
+	for _, agent := range agentList.Agents {
+		if agent.Name == name {
+			return int(agent.ID), nil
+		}
+	}
+	return 0, errors.New(fmt.Sprintf("Agent with name %s is not in server", name))
+}