Revert "docker: escape key-value pair as -e KEY and VALUE being environment var (#2091)"

This reverts commit 95459dea5f.

src/Runner.Worker/Container/DockerCommandManager.cs

@@ -107,7 +107,6 @@ namespace GitHub.Runner.Worker.Container
         public async Task<string> DockerCreate(IExecutionContext context, ContainerInfo container)
         {
             IList<string> dockerOptions = new List<string>();
-            IDictionary<string, string> environment = new Dictionary<string, string>();
             // OPTIONS
             dockerOptions.Add($"--name {container.ContainerDisplayName}");
             dockerOptions.Add($"--label {DockerInstanceLabel}");
@@ -136,8 +135,7 @@ namespace GitHub.Runner.Worker.Container
                 }
                 else
                 {
-                    environment.Add(env.Key, env.Value);
+                    dockerOptions.Add(DockerUtil.CreateEscapedOption("-e", env.Key, env.Value));
-                    dockerOptions.Add(DockerUtil.CreateEscapedOption("-e", env.Key));
                 }
             }
 
@@ -185,7 +183,7 @@ namespace GitHub.Runner.Worker.Container
             dockerOptions.Add($"{container.ContainerEntryPointArgs}");
 
             var optionsString = string.Join(" ", dockerOptions);
-            List<string> outputStrings = await ExecuteDockerCommandAsync(context, "create", optionsString, environment);
+            List<string> outputStrings = await ExecuteDockerCommandAsync(context, "create", optionsString);
 
             return outputStrings.FirstOrDefault();
         }
@@ -445,11 +443,6 @@ namespace GitHub.Runner.Worker.Container
         }
 
         private async Task<List<string>> ExecuteDockerCommandAsync(IExecutionContext context, string command, string options)
-        {
-            return await ExecuteDockerCommandAsync(context, command, options, null);
-        }
-
-        private async Task<List<string>> ExecuteDockerCommandAsync(IExecutionContext context, string command, string options, IDictionary<string, string> environment)
         {
             string arg = $"{command} {options}".Trim();
             context.Command($"{DockerPath} {arg}");
@@ -477,7 +470,7 @@ namespace GitHub.Runner.Worker.Container
                             workingDirectory: context.GetGitHubContext("workspace"),
                             fileName: DockerPath,
                             arguments: arg,
-                            environment: environment,
+                            environment: null,
                             requireExitCodeZero: true,
                             outputEncoding: null,
                             cancellationToken: CancellationToken.None);

src/Runner.Worker/Container/DockerUtil.cs

@@ -71,6 +71,15 @@ namespace GitHub.Runner.Worker.Container
             return $"{flag} \"{EscapeString(key)}\"";
         }
 
+        public static string CreateEscapedOption(string flag, string key, string value)
+        {
+            if (String.IsNullOrEmpty(key))
+            {
+                return "";
+            }
+            return $"{flag} \"{EscapeString(key)}={EscapeString(value)}\"";
+        }
+
         private static string EscapeString(string value)
         {
             return value.Replace("\\", "\\\\").Replace("\"", "\\\"");

src/Test/L0/Container/DockerUtilL0.cs

@@ -171,5 +171,32 @@ namespace GitHub.Runner.Common.Tests.Worker.Container
             }
             Assert.Equal(expected, actual);
         }
+
+        [Theory]
+        [Trait("Level", "L0")]
+        [Trait("Category", "Worker")]
+        [InlineData("HOME", "", "HOME", "")]
+        [InlineData("HOME alpine:3.8 sh -c id #", "HOME alpine:3.8 sh -c id #", "HOME alpine:3.8 sh -c id #", "HOME alpine:3.8 sh -c id #")]
+        [InlineData("HOME \"alpine:3.8 sh -c id #", "HOME \"alpine:3.8 sh -c id #", "HOME \\\"alpine:3.8 sh -c id #", "HOME \\\"alpine:3.8 sh -c id #")]
+        [InlineData("HOME \\\"alpine:3.8 sh -c id #", "HOME \\\"alpine:3.8 sh -c id #", "HOME \\\\\\\"alpine:3.8 sh -c id #", "HOME \\\\\\\"alpine:3.8 sh -c id #")]
+        [InlineData("HOME \\\\\"alpine:3.8 sh -c id #", "HOME \\\\\"alpine:3.8 sh -c id #", "HOME \\\\\\\\\\\"alpine:3.8 sh -c id #", "HOME \\\\\\\\\\\"alpine:3.8 sh -c id #")]
+        [InlineData("HOME \"\"alpine:3.8 sh -c id #", "HOME \"\"alpine:3.8 sh -c id #", "HOME \\\"\\\"alpine:3.8 sh -c id #", "HOME \\\"\\\"alpine:3.8 sh -c id #")]
+        [InlineData("HOME \\\"\"alpine:3.8 sh -c id #", "HOME \\\"\"alpine:3.8 sh -c id #", "HOME \\\\\\\"\\\"alpine:3.8 sh -c id #", "HOME \\\\\\\"\\\"alpine:3.8 sh -c id #")]
+        [InlineData("HOME \"\\\"alpine:3.8 sh -c id #", "HOME \"\\\"alpine:3.8 sh -c id #", "HOME \\\"\\\\\\\"alpine:3.8 sh -c id #", "HOME \\\"\\\\\\\"alpine:3.8 sh -c id #")]
+        public void CreateEscapedOption_keyValue(string keyInput, string valueInput, string escapedKey, string escapedValue)
+        {
+            var flag = "--example";
+            var actual = DockerUtil.CreateEscapedOption(flag, keyInput, valueInput);
+            string expected;
+            if (String.IsNullOrEmpty(keyInput))
+            {
+                expected = "";
+            }
+            else
+            {
+                expected = $"{flag} \"{escapedKey}={escapedValue}\"";
+            }
+            Assert.Equal(expected, actual);
+        }
     }
 }