arms-obi add-on: prerequisites, capabilities, and release notes-Container Service for Kubernetes(ACK)-阿里云帮助中心

arms-obi is a non-intrusive application monitoring add-on provided by Cloud Monitor 2.0 from Alibaba Cloud. It lets you integrate your Kubernetes applications with Cloud Monitor 2.0 without changing application code.

Prerequisites

Alibaba Cloud Linux 3 and Alibaba Cloud Linux 4 meet the kernel version, BTF, CPU architecture, and permission requirements by default.

arms-obi supports only Linux environments that meet all of the following requirements:

Requirement	Description
Kernel version	Linux 5.8 or later. RHEL-based kernels running Linux 4.18 or later, applicable to RHEL-based distributions that include eBPF backport patches.
BTF	The kernel must expose BPF Type Format (BTF) information.
CPU architecture	amd64 (x86_64) and arm64 (aarch64).
Permissions	`BPF`: Loads BPF programs. `SYS_ADMIN`: Replaces the PERFMON permission for Container Service for Kubernetes (ACK) kernels where `perf_event_paranoid≥2`, and is used for Trace Context propagation in Go applications. `NET_ADMIN`: Used by TC/XDP network-related BPF programs and for Trace Context propagation in Go applications. `NET_RAW`: Creates AF_PACKET raw sockets. `SYS_PTRACE`: Reads `/proc/pid/exe` and executable module symbols. `DAC_READ_SEARCH`: Reads `/proc/self/mem` to obtain the kernel version. `CHECKPOINT_RESTORE`: Accesses symlinks in `/proc` to obtain process information.

To verify whether a target Linux environment meets these requirements, run the following commands in that environment:

# 1. Check the kernel version (must be >= 5.8; RHEL-based kernels must be >= 4.18)
uname -r

# 2. Check the CPU architecture (must be amd64 or arm64)
uname -m

# 3. Check whether BTF is available (the file exists if BTF is supported)
ls /sys/kernel/btf/vmlinux

Add-on overview

The arms-obi add-on provides the following features:

Collects application monitoring data automatically, including application topology, API calls, exception transactions, and slow transactions, as well as network data in container environments. Reports the data to Cloud Monitor 2.0.
Supports multiple programming languages, including Java, Go, Python, Node.js, C++, Rust, .NET, and Ruby.
Supports integrating AI Agent data with Cloud Monitor 2.0, including MCP calls, OpenAI, Qwen, Embedding, and Rerank.
Supports both amd64 and arm64 CPU architectures.

Usage notes

To learn how to integrate applications with Cloud Monitor 2.0 through arms-obi, see Enable ACK observability with OBI.

Release notes

October 2026

Version	Image address	Release date	Changes	Impact
0.14.0	`registry.{REGION}.aliyuncs.com/acs/obi:0.14.0`	October 16, 2026	Added GPU card metric collection. Synchronized bug fixes from the community.	This upgrade has no impact on your workloads.
0.13.1	`registry.{REGION}.aliyuncs.com/acs/obi:0.13.1`	October 9, 2026	Fixed an issue that prevented collection of MySQL data. Added CUDA GPU metrics. Added MCP metrics. Synchronized bug fixes from the community.	This upgrade has no impact on your workloads.

September 2026

Version	Image address	Release date	Changes	Impact
0.13.0	`registry.{REGION}.aliyuncs.com/acs/obi:0.13.0`	September 15, 2026	Added support for Kubernetes 1.24. Added sampling for network metric collection. Synchronized bug fixes from the community.	This upgrade has no impact on your workloads.
0.12.0	`registry.{REGION}.aliyuncs.com/acs/obi:0.12.0`	September 5, 2026	Added support for collecting Go profiling data by using a Deployment. Synchronized bug fixes from the community.	This upgrade has no impact on your workloads.

July 2026

Version	Image address	Release date	Changes	Impact
0.10.2	`registry.{REGION}.aliyuncs.com/acs/obi:0.10.2`	July 28, 2026	Added support for Kubernetes 1.26 and later. Synchronized bug fixes from the community. Added support for LLM gateways and server-side adaptive integration with AI Agent applications.	This upgrade has no impact on your workloads.
0.10.1	`registry.{REGION}.aliyuncs.com/acs/obi:0.10.1`	July 20, 2026	Reduced kernel resource consumption and removed PID information for processes that do not require monitoring. Synchronized bug fixes from the community.	This upgrade has no impact on your workloads.
0.10.0	`registry.{REGION}.aliyuncs.com/acs/obi:0.10.0`	July 3, 2026	Prevented error text from being exposed in span status in GenAI scenarios. Synchronized bug fixes from the community.	This upgrade has no impact on your workloads.

June 2026

Version	Image address	Release date	Changes	Impact
0.9.5	`registry.{REGION}.aliyuncs.com/acs/obi:0.9.5`	June 24, 2026	Added observability for AI Agents, including LLM, Embedding, MCP, Rerank, Retrieval, and Tool. Changed path convergence to a threshold-based approach. Fixed trace correlation issues across multiple applications.	This upgrade has no impact on your workloads.
0.9.4	`registry.{REGION}.aliyuncs.com/acs/obi:0.9.4`	June 10, 2026	Added support for application integration without restarting the arms-obi add-on.	This upgrade has no impact on your workloads.
0.9.3	`registry.{REGION}.aliyuncs.com/acs/obi:0.9.3`	June 3, 2026	Added a profiling data collection add-on.	This upgrade has no impact on your workloads.

May 2026

Version	Image address	Release date	Changes	Impact
0.9.2	`registry.{REGION}.aliyuncs.com/acs/obi:0.9.2`	May 27, 2026	Added support for integrating applications through the Cloud Monitor 2.0 Access Center.	This upgrade has no impact on your workloads.
0.9.1	`registry.{REGION}.aliyuncs.com/acs/obi:0.9.1`	May 24, 2026	Added support for ACK clusters.	This upgrade has no impact on your workloads.
0.9.0	`registry.{REGION}.aliyuncs.com/acs/obi:0.9.0`	May 22, 2026	The arms-obi add-on was initially released, with support for non-intrusive application monitoring data collection.	The initial installation has no impact on your workloads.