add Gor (go-based HTTP replay tool) to content-store app, to replay a…#11
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add Gor (go-based HTTP replay tool) to content-store app, to replay a…#11Havoooo wants to merge 2 commits into
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…ll requests to content-store-on-postgresql
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Jul 20, 2023
This commit sets `shm_size: 512mb` so that browser based tests run correctly (e.g. Jasmine unit tests and Capybara feature specs).
Docker allocates 64mb shared memory to containers by default, but recent versions of Chrome require more than this. Otherwise you'll start to see error messages complaining about an "invalid session id". In a previous discussion on Slack, it was informally agreed that 512mb seems to be the 'right sized' amount to allocate – but this was anecdotal, so other values may work equally well for our needs.
If the `shm_size` is too small, you'll get error messages that look something like this in your terminal:
```
NoSuchSessionError: invalid session id
at Object.throwDecodedError (/govuk/whitehall/node_modules/selenium-webdriver/lib/error.js:522:15)
at parseHttpResponse (/govuk/whitehall/node_modules/selenium-webdriver/lib/http.js:548:13)
at Executor.execute (/govuk/whitehall/node_modules/selenium-webdriver/lib/http.js:474:28)
at processTicksAndRejections (internal/process/task_queues.js:97:5)
at async thenableWebDriverProxy.execute (/govuk/whitehall/node_modules/selenium-webdriver/lib/webdriver.js:735:17)
at async Object.runSpecs (/govuk/whitehall/node_modules/jasmine-browser-runner/index.js:116:9)
at async Command.runSpecs (/govuk/whitehall/node_modules/jasmine-browser-runner/lib/command.js:187:5) {
remoteStacktrace: '#0 0xaaaabaf6b1b0 <unknown>\n' +
'#1 0xaaaabada13b0 <unknown>\n' +
'#2 0xaaaabadc7fe4 <unknown>\n' +
'#3 0xaaaabadc9864 <unknown>\n' +
'#4 0xaaaabafa75f8 <unknown>\n' +
'#5 0xaaaabafa9d98 <unknown>\n' +
'#6 0xaaaabafa9acc <unknown>\n' +
'#7 0xaaaabaf987e0 <unknown>\n' +
'#8 0xaaaabafaa500 <unknown>\n' +
'#9 0xaaaabaf8e080 <unknown>\n' +
'#10 0xaaaabafc1790 <unknown>\n' +
'#11 0xaaaabafc1950 <unknown>\n' +
'#12 0xaaaabafdbbd4 <unknown>\n' +
'#13 0xffffb0f28628 <unknown>\n' +
'#14 0xffffb075501c <unknown>\n'
}
error Command failed with exit code 1.
```
This config needs to be applied to each service that needs to run Chrome. In this commit, I've added it to applications owned by the Publishing service. Other applications (including frontend applications) may also benefit from this config, but I didn't want to make assumptions about which applications need it and which don't.
More information about this problem is covered in this blog post:
https://thecurve.io/dealing-with-cryptic-seleniumwebdrivererrorinvalidsessioniderror-errors/
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…ll requests to content-store-on-postgresql