From b96dc49bcbd2f02d224e9bd6c0d74f7497cd4cb6 Mon Sep 17 00:00:00 2001
From: Guillaume Tardif <guillaume.tardif@gmail.com>
Date: Thu, 8 Apr 2021 15:45:51 +0200
Subject: [PATCH] Avoid panic: concurrent map writes

Signed-off-by: Guillaume Tardif <guillaume.tardif@gmail.com>
---
 local/compose/images.go | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/local/compose/images.go b/local/compose/images.go
index e24168e9f..c6f33a9d9 100644
--- a/local/compose/images.go
+++ b/local/compose/images.go
@@ -20,6 +20,7 @@ import (
 	"context"
 	"fmt"
 	"strings"
+	"sync"
 
 	moby "github.com/docker/docker/api/types"
 	"github.com/docker/docker/api/types/filters"
@@ -58,6 +59,7 @@ func (s *composeService) Images(ctx context.Context, projectName string, options
 	}
 
 	images := map[string]moby.ImageInspect{}
+	l := sync.Mutex{}
 	eg, ctx := errgroup.WithContext(ctx)
 	for _, img := range imageIDs {
 		img := img
@@ -66,7 +68,9 @@ func (s *composeService) Images(ctx context.Context, projectName string, options
 			if err != nil {
 				return err
 			}
+			l.Lock()
 			images[img] = inspect
+			l.Unlock()
 			return nil
 		})
 	}