[EBPF] kmt: fix permissions for /go in compiler container (#40316)

gjulianm · web-flow · commit 61eb45079735 · 2025-08-27T16:58:51.000Z
### What does this PR do? Fixes the permissions inside of the docker compiler container for KMT. ### Motivation Fix local building in KMT. ### Describe how you validated your changes (if not by through tests) Started the compiler and checked that it can compile tests. I created a ticket to follow up with CI tests https://datadoghq.atlassian.net/browse/EBPF-805 ### Possible Drawbacks / Trade-offs
diff --git a/tasks/kernel_matrix_testing/compiler.py b/tasks/kernel_matrix_testing/compiler.py
@@ -218,6 +218,9 @@ def start(self) -> None:
                 user="root",
             )
 
+        # We need to make the /go directory writable by the compiler user
+        self.exec("chmod -R a+rw /go", user="root")
+
         cross_arch = ARCH_ARM64 if self.arch == ARCH_AMD64 else ARCH_AMD64
         self.exec("chmod a+rx /root", user="root")  # Some binaries will be in /root and need to be readable
         self.exec(f"dpkg --add-architecture {cross_arch.go_arch}", user="root")

Original file line number	Diff line number	Diff line change
`@@ -218,6 +218,9 @@ def start(self) -> None:`
`218`	`218`	`user="root",`
`219`	`219`	`)`
`220`	`220`
	`221`	`+ # We need to make the /go directory writable by the compiler user`
	`222`	`+ self.exec("chmod -R a+rw /go", user="root")`
	`223`	`+`
`221`	`224`	`cross_arch = ARCH_ARM64 if self.arch == ARCH_AMD64 else ARCH_AMD64`
`222`	`225`	`self.exec("chmod a+rx /root", user="root") # Some binaries will be in /root and need to be readable`
`223`	`226`	`self.exec(f"dpkg --add-architecture {cross_arch.go_arch}", user="root")`