aws-iot-greengrass-lite-demo-ec2-image: fix flaky ssh, rauc grow partition

Sometimes /home/user is not bind mount from data partition before cloud-init
creates .ssh folder. These change fix this. As well as a rauc grow partition
is not always running. Resulting in a non fully resized data partition.

Author: Thomas Roos

meta-aws-demos/recipes-core/images/aws-iot-greengrass-lite-demo-ec2-image/aws-iot-greengrass-lite-demo-ec2-image.bb

@@ -63,55 +63,26 @@ rootfs_user_fstab () {
 # Allow user to use sudo
 echo "user ALL=(ALL) NOPASSWD: ALL" >> ${IMAGE_ROOTFS}/etc/sudoers
 
-
 # enable serial console auto login for root
 sed -i '/^\s*ExecStart\b/ s/getty /&--autologin root /' \
     "${IMAGE_ROOTFS}${systemd_system_unitdir}/serial-getty@.service"
 
-# reload services after data partition is mounted
-cat > ${IMAGE_ROOTFS}/lib/systemd/system/reload-systemd-data.service << 'EOF'
-[Unit]
-Description=Reload systemd services from data partition
-After=data.mount
-
-[Service]
-Type=oneshot
-ExecStart=/bin/systemctl daemon-reload
-ExecStart=/bin/systemctl start --all
-RemainAfterExit=yes
-EOF
-
-ln -sf /lib/systemd/system/reload-systemd-data.service ${IMAGE_ROOTFS}/lib/systemd/system/reload-systemd-data.service
-
 # not necessary for this image
 rm ${IMAGE_ROOTFS}//usr/lib/systemd/system/systemd-vconsole-setup.service
 
 # move all exising systemd services to the lib system directory and the remaining dir will be the bind mount point
 cp -a ${IMAGE_ROOTFS}/etc/systemd/system/* ${IMAGE_ROOTFS}/lib/systemd/system/
 rm -rf ${IMAGE_ROOTFS}/etc/systemd/system/*
 
-# cloud-intit service needs to be started after data partition is mounted
-mkdir -p ${IMAGE_ROOTFS}/lib/systemd/system/cloud-init.service.d/
-cat << EOF > ${IMAGE_ROOTFS}/lib/systemd/system/cloud-init.service.d/overrides.conf
+# cloud-init-local service also needs to wait for data partition mounts
+mkdir -p ${IMAGE_ROOTFS}/lib/systemd/system/cloud-init-local.service.d/
+cat << EOF > ${IMAGE_ROOTFS}/lib/systemd/system/cloud-init-local.service.d/overrides.conf
 [Unit]
-After=local-fs.target
-After=rauc-grow-data-partition.service
+RequiresMountsFor=/etc/ssh/
 RequiresMountsFor=/home
 RequiresMountsFor=/root
-RequiresMountsFor=/etc/ssh/
-
-[Service]
-Restart=on-failure
-RestartSec=30
-StartLimitInterval=90
-StartLimitBurst=3
-ExecStopPost=/usr/bin/cloud-init clean
-
-[Install]
-WantedBy=multi-user.target
 EOF
 
-
 # overwrite the default fstab, adding customization for this image
 cat << EOF > ${IMAGE_ROOTFS}/${sysconfdir}/fstab
 /dev/root            /                    auto       rw              1  1
@@ -167,7 +138,6 @@ fi
 install -d ${IMAGE_ROOTFS}/data/etc/ssh/
 mv -f ${IMAGE_ROOTFS}/etc/ssh/* ${IMAGE_ROOTFS}/data/etc/ssh/
 
-
 }
 
 ####

meta-aws-demos/recipes-core/rauc/files/rauc-grow-data-partition.service

@@ -1,11 +1,16 @@
 FILESEXTRAPATHS:prepend := "${THISDIR}/files:"
 
-SRC_URI += "file://rauc.service.d/override.conf"
+SRC_URI:append = " file://rauc.service.d/override.conf"
 
 do_install:append() {
     install -d ${D}${systemd_system_unitdir}/rauc.service.d
     install -m 0644 ${WORKDIR}/rauc.service.d/override.conf ${D}${systemd_system_unitdir}/rauc.service.d/
 }
 
+do_install:append:rpi() {
+    # Remove ExecStart line for mmcblk0
+    sed -i '/ExecStart=.*mmcblk0.*resizepart 6/d' ${D}${systemd_system_unitdir}/rauc-grow-data-partition.service
+}
+
 # enable debug logs for rauc to see stats of adaptive updates
-FILES:${PN} += "${systemd_system_unitdir}/rauc.service.d/override.conf"
+FILES:${PN}:append = " ${systemd_system_unitdir}/rauc.service.d/override.conf"

meta-aws-demos/recipes-core/rauc/rauc_%.bbappend

@@ -0,0 +1,7 @@
+FILESEXTRAPATHS:prepend := "${THISDIR}/files:"
+
+SRC_URI:append = " file://cloud-init.service"
+
+do_install:append() {
+    install -m 0644 ${WORKDIR}/cloud-init.service ${D}${systemd_system_unitdir}/cloud-init.service
+}

meta-aws-demos/recipes-extended/cloud-init/cloud-init_%.bbappend

@@ -0,0 +1,36 @@
+[Unit]
+Description=Initial cloud-init job (metadata service crawler)
+DefaultDependencies=no
+Wants=cloud-init-local.service
+Wants=sshd-keygen.service
+Wants=sshd.service
+After=cloud-init-local.service
+After=systemd-networkd-wait-online.service
+After=networking.service
+After=rauc-grow-data-partition.service
+Before=network-online.target
+Before=sshd-keygen.service
+Before=sshd.service
+Before=shutdown.target
+Conflicts=shutdown.target
+ConditionPathExists=!/etc/cloud/cloud-init.disabled
+ConditionKernelCommandLine=!cloud-init=disabled
+ConditionEnvironment=!KERNEL_CMDLINE=cloud-init=disabled
+
+[Service]
+Type=oneshot
+ExecStart=/usr/bin/cloud-init init
+RemainAfterExit=yes
+TimeoutSec=0
+Restart=on-failure
+RestartSec=30
+StartLimitInterval=90
+StartLimitBurst=3
+ExecStopPost=/usr/bin/cloud-init clean
+
+# Output needs to appear in instance console output
+StandardOutput=journal+console
+
+[Install]
+WantedBy=cloud-init.target
+WantedBy=multi-user.target