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fix: Add GitHub fallback for install scripts on LXC/barebone updates

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When install.sh or install.ps1 don't exist locally (happens on LXC/barebone
installations that were updated via web UI which only updates the binary),
fallback to fetching from GitHub raw content.

Related to #909
This commit is contained in:
rcourtman
2025-12-26 19:49:38 +00:00
parent 8593d26dce
commit 7b6613bbc4
1 changed files with 54 additions and 4 deletions
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58
internal/api/unified_agent.go
View File

@@ -1,10 +1,12 @@
package api
import (
"io"
"net/http"
"os"
"path/filepath"
"strings"
"time"
"github.com/rs/zerolog/log"
)
@@ -26,8 +28,11 @@ func (r *Router) handleDownloadUnifiedInstallScript(w http.ResponseWriter, req *
// Fallback to project root (dev environment)
scriptPath = filepath.Join(r.projectRoot, "scripts", "install.sh")
if _, err := os.Stat(scriptPath); os.IsNotExist(err) {
log.Error().Str("path", scriptPath).Msg("Unified install script not found")
http.Error(w, "Install script not found", http.StatusNotFound)
// Final fallback: proxy from GitHub releases
// This handles LXC/barebone installations updated via web UI where
// only the binary is updated, not the scripts directory
log.Info().Msg("Local install.sh not found, proxying from GitHub releases")
r.proxyInstallScriptFromGitHub(w, req, "install.sh")
return
}
}
@@ -54,8 +59,9 @@ func (r *Router) handleDownloadUnifiedInstallScriptPS(w http.ResponseWriter, req
// Fallback to project root (dev environment)
scriptPath = filepath.Join(r.projectRoot, "scripts", "install.ps1")
if _, err := os.Stat(scriptPath); os.IsNotExist(err) {
log.Error().Str("path", scriptPath).Msg("Unified PowerShell install script not found")
http.Error(w, "Install script not found", http.StatusNotFound)
// Final fallback: proxy from GitHub releases
log.Info().Msg("Local install.ps1 not found, proxying from GitHub releases")
r.proxyInstallScriptFromGitHub(w, req, "install.ps1")
return
}
}
@@ -165,3 +171,47 @@ func (r *Router) handleDownloadUnifiedAgent(w http.ResponseWriter, req *http.Req
http.Error(w, "Agent binary not found", http.StatusNotFound)
}
}
// proxyInstallScriptFromGitHub fetches an install script from GitHub releases
// This is used as a fallback when scripts aren't available locally (e.g., LXC updates)
func (r *Router) proxyInstallScriptFromGitHub(w http.ResponseWriter, req *http.Request, scriptName string) {
// Use raw.githubusercontent.com to fetch from main branch
githubURL := "https://raw.githubusercontent.com/rcourtman/Pulse/main/scripts/" + scriptName
client := &http.Client{
Timeout: 30 * time.Second,
}
resp, err := client.Get(githubURL)
if err != nil {
log.Error().Err(err).Str("url", githubURL).Msg("Failed to fetch install script from GitHub")
http.Error(w, "Failed to fetch install script", http.StatusServiceUnavailable)
return
}
defer resp.Body.Close()
if resp.StatusCode != http.StatusOK {
log.Error().Int("status", resp.StatusCode).Str("url", githubURL).Msg("GitHub returned non-200 status for install script")
http.Error(w, "Install script not found", http.StatusNotFound)
return
}
// Read the script content
content, err := io.ReadAll(resp.Body)
if err != nil {
log.Error().Err(err).Msg("Failed to read install script from GitHub")
http.Error(w, "Failed to read install script", http.StatusInternalServerError)
return
}
// Determine content type based on script extension
contentType := "text/x-shellscript"
if strings.HasSuffix(scriptName, ".ps1") {
contentType = "text/plain"
}
w.Header().Set("Content-Type", contentType)
w.Header().Set("Content-Disposition", "inline; filename=\""+scriptName+"\"")
w.Header().Set("X-Served-From", "github-fallback")
w.Write(content)
}