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ensure-relay-credentials.sh
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ensure-relay-credentials.sh
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echo "${_group}Ensuring Relay credentials ..."
RELAY_CONFIG_YML="../relay/config.yml"
RELAY_CREDENTIALS_JSON="../relay/credentials.json"
ensure_file_from_example $RELAY_CONFIG_YML
if [[ -f "$RELAY_CREDENTIALS_JSON" ]]; then
echo "$RELAY_CREDENTIALS_JSON already exists, skipped creation."
else
# There are a couple gotchas here:
#
# 1. We need to use a tmp file because if we redirect output directly to
# credentials.json, then the shell will create an empty file that relay
# will then try to read from (regardless of options such as --stdout or
# --overwrite) and fail because it is empty.
#
# 2. We pull relay:nightly before invoking `run relay credentials generate`
# because an implicit pull under the run causes extra stdout that results
# in a garbage credentials.json.
#
# 3. We need to use -T to ensure that we receive output on Docker Compose
# 1.x and 2.2.3+ (funny story about that ... ;). Note that the long opt
# --no-tty doesn't exist in Docker Compose 1.
$dc pull relay
creds="$dcr --no-deps -T relay credentials"
$creds generate --stdout > "$RELAY_CREDENTIALS_JSON".tmp
mv "$RELAY_CREDENTIALS_JSON".tmp "$RELAY_CREDENTIALS_JSON"
if ! grep -q Credentials <($creds show); then
# Let's fail early if creds failed, to make debugging easier.
echo "Failed to create relay credentials in $RELAY_CREDENTIALS_JSON."
echo "--- credentials.json v ---------------------------------------"
cat -v "$RELAY_CREDENTIALS_JSON" || true
echo "--- credentials.json ^ ---------------------------------------"
exit 1
fi
echo "Relay credentials written to $RELAY_CREDENTIALS_JSON."
fi
echo "${_endgroup}"

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