newrelic-php-agent: Latest agent download does not include aarch64 support

As of agent 9.18 there is aarch64 support (ARM and Graviton 2 support) but the installer

Description

I would have expected when the agent supported the arch it’d be packaged in precompiled into the easy installer, maybe this is just a simple overlook!

Steps to Reproduce

Using a container on an aarch64 host, this snippet should work, but I realized it didn’t on my Graviton 2 based systems - it winds up installing the amd64 version of the agent, not the aarch64 version - the agent directory in the archive doesn’t include aarch64.

RUN curl -L "https://download.newrelic.com/php_agent/archive/${NEW_RELIC_AGENT_VERSION}/newrelic-php5-${NEW_RELIC_AGENT_VERSION}-linux.tar.gz" | tar -C /tmp -zx \
 && export NR_INSTALL_USE_CP_NOT_LN=1 \
 && export NR_INSTALL_SILENT=1 \
 && /tmp/newrelic-php5-*/newrelic-install install \
 && rm -rf /tmp/newrelic-php5-* /tmp/nrinstall*

Expected Behavior

The agent directory would be populated with aarch64 and the scripting to detect the arch would find it and select it properly.

Your Environment

Relevant Dockerfile specifics:

FROM ubuntu:bionic

ENV NEW_RELIC_AGENT_VERSION 9.18.1.303
ENV PHP_VERSION 7.4

Currently compiling the agent by hand using these instructions which winds up looking like this in the end:

RUN apt-get update && apt-get install -y git golang libpcre3-dev php${PHP_VERSION}-dev && \
  curl -L -o /tmp/v${NEW_RELIC_AGENT_VERSION}.tar.gz https://github.com/newrelic/newrelic-php-agent/archive/refs/tags/v${NEW_RELIC_AGENT_VERSION}.tar.gz && \
  cd /tmp && \
  tar xfz v${NEW_RELIC_AGENT_VERSION}.tar.gz && \
  cd newrelic-php-agent-${NEW_RELIC_AGENT_VERSION} && \
  git init && \
  make && \
  make agent-install && \
  mkdir -p 0777 /var/log/newrelic && \
  rm -rf /tmp/v${NEW_RELIC_AGENT_VERSION}.tar.gz /tmp/newrelic-php-agent-${NEW_RELIC_AGENT_VERSION} && \
  phpenmod newrelic

Note: I wanted to use Ubuntu Focal, but I think something is awry with that image (unrelated to this)

Additional context

I would have expected when the agent supported the arch it’d be packaged in precompiled into the easy installer, maybe this is just a simple overlook.