[llvm] [Bolt] Use fully qualified docker image name (NFC) (PR #162154)

[via llvm-commits]

llvmbot wrote:


<!--LLVM PR SUMMARY COMMENT-->

@llvm/pr-subscribers-bolt

Author: Baranov Victor (vbvictor)

<details>
<summary>Changes</summary>

Based on https://github.com/llvm/llvm-project/pull/162007#issuecomment-3373161948, we should avoid having short links in docker images.

---
Full diff: https://github.com/llvm/llvm-project/pull/162154.diff


1 Files Affected:

- (modified) bolt/utils/docker/Dockerfile (+2-2) 


``````````diff
diff --git a/bolt/utils/docker/Dockerfile b/bolt/utils/docker/Dockerfile
index c58e1a533df94..86d1be2141655 100644
--- a/bolt/utils/docker/Dockerfile
+++ b/bolt/utils/docker/Dockerfile
@@ -1,4 +1,4 @@
-FROM ubuntu:24.04 AS builder
+FROM docker.io/library/ubuntu:24.04 AS builder
 
 ARG DEBIAN_FRONTEND=noninteractive
 ENV TZ=UTC
@@ -25,6 +25,6 @@ RUN mkdir build && \
     ninja check-bolt && \
     ninja install-llvm-bolt install-merge-fdata install-bolt_rt
 
-FROM ubuntu:24.04
+FROM docker.io/library/ubuntu:24.04
 
 COPY --from=builder /home/bolt/install /usr/local

``````````

</details>


https://github.com/llvm/llvm-project/pull/162154