Add endpoint for foundry container's logs

2 files changed, 86 insertions, 1 deletions

diff --git a/api/api.go b/api/api.go
index c74723d..957651e 100644
--- a/api/api.go
+++ b/api/api.go
@@ -3,9 +3,11 @@ package api
 import (
 	"context"
 	"encoding/json"
+	"io"
 	"log/slog"
 	"net/http"
 	"os"
+	"strconv"
 	"time"
 )
 
@@ -40,7 +42,7 @@ func respondOnline(w http.ResponseWriter, status ServerStatus) {
 	jsonData, err := json.Marshal(status)
 	if err != nil {
 		http.Error(w, "Error constructing response", http.StatusInternalServerError)
-		Logger.Error("Error marshalling site status data")
+		Logger.Error("Error marshalling site status data", slog.Any("err", err))
 		return
 	}
 
@@ -61,6 +63,31 @@ func VttRedirect(w http.ResponseWriter, req *http.Request) {
 	http.Redirect(w, req, VTT_URL, http.StatusMovedPermanently)
 }
 
+func VttLogs(w http.ResponseWriter, req *http.Request) {
+	var lines uint = 0
+
+	linesParam := req.URL.Query().Get("lines")
+	if linesParam != "" {
+		lines_64, err := strconv.ParseUint(linesParam, 10, 64)
+		if err != nil {
+			Logger.ErrorContext(req.Context(), "Invalid line count in vtt logs request", slog.Any("err", err))
+			http.Error(w, "Invalid line count in request", http.StatusBadRequest)
+			return
+		}
+
+		lines = uint(lines_64)
+	}
+
+	logReader, err := vttLogs(req.Context(), lines)
+	if err != nil {
+		http.Error(w, "Error occured while getting logs", http.StatusInternalServerError)
+		return
+	}
+	defer logReader.Close()
+
+	io.Copy(w, logReader)
+}
+
 func SiteOnline(w http.ResponseWriter, req *http.Request) {
 	const URL string = "https://dnd.jpappel.xyz"
 
diff --git a/api/docker.go b/api/docker.go
new file mode 100644
index 0000000..21d5c26
--- /dev/null
+++ b/api/docker.go
@@ -0,0 +1,58 @@
+package api
+
+import (
+	"context"
+	"fmt"
+	"io"
+	"log/slog"
+
+	"github.com/docker/docker/api/types/container"
+	"github.com/docker/docker/client"
+)
+
+const vttContainerId string = "foundry-foundry-1"
+
+func stopVtt(ctx context.Context) error {
+	apiClient, err := client.NewClientWithOpts(client.FromEnv)
+	if err != nil {
+		Logger.ErrorContext(ctx, "Failed to get docker api client", slog.Any("err", err))
+		return err
+	}
+
+	Logger.InfoContext(ctx, "Stopping foundry container")
+	err = apiClient.ContainerStop(ctx, vttContainerId, container.StopOptions{})
+	if err != nil {
+		Logger.ErrorContext(ctx, "Error occured while stopping foundry container", slog.Any("err", err))
+		return err
+	}
+
+	return nil
+}
+
+// Get readcloser for logs
+// If lines is zero, returns all logs.
+func vttLogs(ctx context.Context, lines uint) (io.ReadCloser, error) {
+	apiClient, err := client.NewClientWithOpts(client.FromEnv)
+	if err != nil {
+		Logger.ErrorContext(ctx, "Failed to get docker api client", slog.Any("err", err))
+		return nil, err
+	}
+
+	opts := container.LogsOptions{
+		ShowStdout: true,
+		ShowStderr: true,
+		Timestamps: true,
+	}
+	if lines != 0 {
+		opts.Tail = fmt.Sprint(lines)
+	}
+
+	Logger.DebugContext(ctx, "Getting container logs")
+	r, err := apiClient.ContainerLogs(ctx, vttContainerId, opts)
+	if err != nil {
+		Logger.ErrorContext(ctx, "Failed to get foundry container's logs", slog.Any("err", err))
+		return nil, err
+	}
+
+	return r, nil
+}