Pid file is created before CouchDB is able to respond to HTTP requests.

31-couchdb.sh

# Get couchdb_password from metadata if exists, or use couchdb_pw, or set one.
log "getting couchdb_password"
if [[ $(mdata-get couchdb_password &>/dev/null)$? -eq "0" ]]; then
    COUCHDB_PW=$(mdata-get couchdb_password 2>/dev/null);
    mdata-put couchdb_pw ${COUCHDB_PW}
elif [[ $(mdata-get couchdb_pw &>/dev/null)$? -eq "0" ]]; then
    COUCHDB_PW=$(mdata-get couchdb_pw 2>/dev/null);
else
    COUCHDB_PW=$(od -An -N8 -x /dev/random | head -1 | tr -d ' ');
    mdata-put couchdb_pw ${COUCHDB_PW}
fi

# Enable CouchDB
log "enabling epmd and couchdb"
svcadm enable -s pkgsrc/epmd
svcadm enable -s pkgsrc/couchdb

# Wait for CouchDB to start
log "waiting for the socket to show up"
COUNT="0";
while [[ $(curl http://127.0.0.1:5984 &>/dev/null)$? -ne "0" ]]; do
#while [[ ! -e /var/spool/couchdb/couchdb.pid ]]; do
        sleep 1
        ((COUNT=COUNT+1))
        if [[ ${COUNT} -eq 60 ]]; then
          log "ERROR Could not talk to CouchDB after 60 seconds"
          ERROR=yes
          break 1
        fi
done
[[ -n "${ERROR}" ]] && exit 31
log "(it took ${COUNT} seconds to start properly)"
sleep 1

# Create CouchDB admin user
log "creating couchdb user"
curl -X PUT http://127.0.0.1:5984/_config/admins/couchdb -d "\"${COUCHDB_PW}\""

# Configure CouchDB
log "configuring couchdb"
openssl genrsa > /opt/local/etc/couchdb/server_key.pem
openssl req -new -x509 -key /opt/local/etc/couchdb/server_key.pem -out /opt/local/etc/couchdb/server_cert.pem -days 1095 -subj "/C=US/ST=CA/O=Default/"
gsed -i "/^; httpsd =/s/; httpsd =/httpsd =/" /opt/local/etc/couchdb/local.ini
gsed -i "s/;cert_file = \/full\/path\/to\/server_cert.pem/cert_file = \/opt\/local\/etc\/couchdb\/server_cert.pem/g" /opt/local/etc/couchdb/local.ini
gsed -i "s/;key_file = \/full\/path\/to\/server_key.pem/key_file = \/opt\/local\/etc\/couchdb\/server_key.pem/g" /opt/local/etc/couchdb/local.ini
gsed -i "s/; require_valid_user = false/require_valid_user = true/g" /opt/local/etc/couchdb/local.ini

# Restart CouchDB
svcadm restart pkgsrc/couchdb