where can I find log files in devstack?

[[local|localrc]]
ADMIN_PASSWORD=pass123
DATABASE_PASSWORD=$ADMIN_PASSWORD
RABBIT_PASSWORD=$ADMIN_PASSWORD
SERVICE_PASSWORD=$ADMIN_PASSWORD
HOST_IP=192.168.1.57

# Services
ENABLED_SERVICES=rabbit,mysql,key
ENABLED_SERVICES+=,n-api,n-crt,n-obj,n-cpu,n-cond,n-sch,n-novnc,n-cauth
ENABLED_SERVICES+=,s-proxy,s-object,s-container,s-account
ENABLED_SERVICES+=,g-api,g-reg
ENABLED_SERVICES+=,cinder,c-api,c-vol,c-sch,c-bak
ENABLED_SERVICES+=,trove,tr-api,tr-tmgr,tr-cond
ENABLED_SERVICES+=,horizon

# Ceilometer
ENABLED_SERVICES+=,ceilometer-acompute,ceilometer-acentral,ceilometer-collector,ceilometer-api
ENABLED_SERVICES+=,ceilometer-alarm-notify,ceilometer-alarm-eval

# Heat
ENABLED_SERVICES+=,heat,h-api,h-api-cfn,h-api-cw,h-eng BLED_SERVICES+=,g-api,g-reg
ENABLED_SERVICES+=,cinder,c-api,c-vol,c-sch,c-bak
ENABLED_SERVICES+=,trove,tr-api,tr-tmgr,tr-cond
ENABLED_SERVICES+=,horizon

# Ceilometer
ENABLED_SERVICES+=,ceilometer-acompute,ceilometer-acentral,ceilometer-collector,ceilometer-api
ENABLED_SERVICES+=,ceilometer-alarm-notify,ceilometer-alarm-eval

# Heat
ENABLED_SERVICES+=,heat,h-api,h-api-cfn,h-api-cw,h-eng

# Neutron
DISABLED_SERVICES=n-net
ENABLED_SERVICES+=,q-svc,q-agt,q-dhcp,q-l3,q-meta,q-metering,neutron

# Neutron - Load Balancing
ENABLED_SERVICES+=,q-lbaas

# VLAN configuration
Q_PLUGIN=ml2
ENABLE_TENANT_VLANS=True

# GRE tunnel configuration
Q_PLUGIN=ml2
ENABLE_TENANT_TUNNELS=True
Q_ML2_TENANT_NETWORK_TYPE=gre

# Logging
LOGFILE=$DEST/logs/stack.sh.log
SCREEN_LOGDIR=$DEST/logs/screen
LOGDAYS=2

# Swift
SWIFT_HASH=66a3d6b56c1f479c8b4e70ab5c2000f5
SWIFT_REPLICAS=1
SWIFT_DATA_DIR=$DEST/data

# Neutron
DISABLED_SERVICES=n-net
ENABLED_SERVICES+=,q-svc,q-agt,q-dhcp,q-l3,q-meta,q-metering,neutron

# Neutron - Load Balancing
ENABLED_SERVICES+=,q-lbaas

# VLAN configuration
Q_PLUGIN=ml2
ENABLE_TENANT_VLANS=True

# GRE tunnel configuration
Q_PLUGIN=ml2
ENABLE_TENANT_TUNNELS=True
Q_ML2_TENANT_NETWORK_TYPE=gre

# Logging
LOGFILE=$DEST/logs/stack.sh.log
SCREEN_LOGDIR=$DEST/logs/screen
LOGDAYS=2

# Swift
SWIFT_HASH=66a3d6b56c1f479c8b4e70ab5c2000f5
SWIFT_REPLICAS=1
SWIFT_DATA_DIR=$DEST/data

# Tempest
enable_service tempest

This in my local.conf file. I installed devstack using this configuration. I'm new to devstack and I can't find the logs now. I've searched the internet and can't find a clear path to the log files. I need the log files to solve an error that says no hosts were found.

As explained in this link devstack now runs all services as systemd unit files (I can't recall exactly since which version, although I would say since the pike release)

Thus, to check the logs of the different services you can use the journalctl utility (along with its infinite options).

Some examples:

sudo journalctl -f -u devstack@n-cond.service

In order to check the nova-conductor logs.

Or:

sudo journalctl -f -u devstack@h*

to check all heat-related services.