Update memory limits

[mviitane]

Changes

Increase memory limits for

• frontend-proxy
• kafka
• grafana
• opensearch

Fix for #1831

Measurement

After running the app for around 5 hours on Docker / Ubuntu / x86_64, I see the following memory usage:

$ docker stats --no-stream --format "table {{.Name}}\t{{.MemPerc}}\t{{.MemUsage}}" | sort -k 2 -h
NAME              MEM %     MEM USAGE / LIMIT
image-provider    4.34%     5.211MiB / 120MiB
recommendation    8.95%     44.77MiB / 500MiB
valkey-cart       17.68%    3.535MiB / 20MiB
shipping          18.91%    3.781MiB / 20MiB
currency          19.86%    3.973MiB / 20MiB
prometheus        30.72%    92.16MiB / 300MiB
frontend          39.31%    98.29MiB / 250MiB
quote             40.11%    16.04MiB / 40MiB
cart              41.37%    66.19MiB / 160MiB
email             47.32%    47.32MiB / 100MiB
flagd-ui          49.86%    37.4MiB / 75MiB
payment           59.42%    71.3MiB / 120MiB
checkout          62.25%    12.45MiB / 20MiB
product-catalog   68.85%    13.77MiB / 20MiB
load-generator    70.95%    1.039GiB / 1.465GiB
accounting        72.90%    87.48MiB / 120MiB
fraud-detection   73.02%    219.1MiB / 300MiB
jaeger            73.66%    883.9MiB / 1.172GiB
ad                75.09%    225.3MiB / 300MiB
otel-collector    78.05%    156.1MiB / 200MiB
flagd             83.37%    62.53MiB / 75MiB
frontend-proxy    88.43%    57.48MiB / 65MiB
kafka             88.50%    548.7MiB / 620MiB
opensearch        94.22%    1.018GiB / 1.08GiB
grafana           96.48%    110MiB / 114MiB

Merge Requirements

For new features contributions, please make sure you have completed the following
essential items:

• CHANGELOG.md updated to document new feature additions
• Appropriate documentation updates in the docs
• Appropriate Helm chart updates in the helm-charts

Maintainers will not merge until the above have been completed. If you're unsure
which docs need to be changed ping the
@open-telemetry/demo-approvers.

[rogercoll]

LGTM