* Fix docker-compose Getting Started guide issues
This addresses several issues with the Docker Compose Getting
Started Guide.
- Intermittent SSH failures and password prompts from the term
container
In the bootstrap container, the "generate-certs.sh" script is
used to generate certificates for other containers in the
environment. This uses two "tctl auth export" commands. If
the Teleport container is not available, i.e., it hasn't
finished booting, generate-cert.sh is supposed to execute a
"return" statement from either of the two "tctl auth export"
commands with a nonzero code, causing the script to try
again after one second.
However, since the output of each "tctl auth export" command
is piped into a "sed" command, the "generate_certs()"
function continues without retrying if the Teleport
container is not yet available. This means that the
term container does not have access to the certificate it
needs to connect to the OpenSSH server, public key
authentication fails, and SSH issues a password challenge.
This change adds the "set -o pipefail" option to the
"generate-certs.sh" script so that the "tctl auth export"
commands return a nonzero exit code if they fail and
the retry logic works as intended.
- Add session recording to the "Next steps" section
This demo isn't set up for session recording, so we remove
the mention from the main body of the guide to avoid
misleading users that this is supposed to be set up here.
Instead, this mentions it as a next step.
- Update instructions for accessing the Web UI.
This mentions the currently valid Chrome flag to use and
indicates that you can visit the invite page in your browser
via localhost.
Fixes#9687Fixes#7872
* Respond to PR feedback
Shellcheck is a linter for shell scripts. Since we have quite a few of
those for release packaging and examples, we'll benefit from an extra
set of (robot) eyes.
Note: I disabled https://github.com/koalaman/shellcheck/wiki/Sc2086 to
make this PR smaller. That specific check is for the most frequent
mistake in our scripts - not quoting env var expansions. I'll do a
separate PR cleaning those up.
`build.assets/pkg` is no longer used and was removed.
