feat(repo): add RepoProxy service for element repository management

Introduce the exordos_core.repo module providing a proxy layer over
external element repositories (nginx HTTP and local bootstrap drivers)
with refresh/sync, lazy element actualization, and version/dependency
resolution.

- Add DM models (Repository, RepoElement, RepoArtifact), driver specs,
  status enums and migration 0062-init-repo-tables
- Implement AbstractProxyRepoDriver with Bootstrap and Nginx drivers
- Add RepoProxyBuilderService and RepoElementBuilderService plus a
  universal agent driver translating resource ops into EM manifest
  lifecycle
- Expose /v1/repo/ user API with repository refresh/upload and element
  install/uninstall/upgrade/edit actions
- Add exordos-repo-proxy-gservice (cmd, systemd unit, install/bootstrap
  wiring, launchpad config)
- Refactor bootstrap to provision elements via RepoProxy instead of
  direct EM manifest installation
- Extend EM Manifest.install/upgrade to return the created Element and
  accept a session; simplify Manifest.uninstall filtering

Signed-off-by: Anton Kremenetsky <anton.kremenetsky@gmail.com>

Author: akremenetsky

etc/exordos_core/exordos_core.conf.j2

@@ -36,6 +36,14 @@ initrd = http://{{ boot_ip }}:8080/bios/initrd.img
 kernel = http://{{ boot_ip }}:8080/bios/vmlinuz
 
 
+[launchpad]
+common_registrator_opts = exordos_core.cmd.repo_proxy_gservice:register_common_opts
+common_initializer = exordos_core.cmd.repo_proxy_gservice:init_common_conf
+services =
+    exordos_core.repo.builders.repository:RepoProxyBuilderService,
+    exordos_core.repo.builders.element:RepoElementBuilderService,
+    exordos_core.repo.agents.universal.service:RepoElementAgentService
+
 [events]
 enabled = False
 # client_type = async

etc/exordos_universal_agent/exordos_universal_agent.conf.j2

@@ -27,7 +27,8 @@ capabilities =
     em_*,
     password,
     certificate,
-    paas_lb_agent
+    paas_lb_agent,
+    repo_proxy_installed_element
 
 
 [CoreDNSCertificateCapabilityDriver]

etc/systemd/exordos-repo-proxy-gservice.service

@@ -0,0 +1,13 @@
+[Unit]
+Description=Exordos Repo Proxy General Service
+After=network-online.target
+
+[Service]
+TimeoutStopSec=5
+Restart=always
+RestartSec=5s
+KillSignal=SIGINT
+ExecStart=exordos-repo-proxy-gservice --config-file /etc/exordos_core/exordos_core.conf --config-dir /etc/exordos_core/exordos_core.d
+
+[Install]
+WantedBy=multi-user.target

exordos/exordos.yaml

@@ -49,7 +49,7 @@ build:
 
         # OS profile for the image
         profile: exordos_base
-        profile_version: "1.1.4"
+        profile_version: "1.2.1"
 
         # Provisioning script
         script: images/install.sh

exordos/images/bootstrap.sh

@@ -69,6 +69,7 @@ if [[ -n "$PERSISTENT_DISK" ]]; then
             cp "${PERSISTENT_MOUNT}/var/lib/exordos/data/etc/exordos_core/exordos_core.conf" /etc/exordos_core/exordos_core.conf
         fi
     fi
+    sudo chown -R postgres:postgres /var/log/postgresql
     mkdir -p /var/lib/exordos/exordos_core
     migrate_to_persistent "/var/lib/exordos/exordos_core" "${PERSISTENT_MOUNT}/var/lib/exordos/exordos_core"
     mkdir -p /var/lib/exordos/data
@@ -151,6 +152,7 @@ sudo systemctl enable --now \
     ec-boot-api \
     ec-gservice \
     ec-core-agent \
+    exordos-repo-proxy-gservice \
     exordos-universal-agent \
     exordos-universal-scheduler \
     pdns \

exordos/images/install.sh

@@ -192,6 +192,7 @@ sudo ln -sf "$VENV_PATH/bin/ec-bootstrap-templates" "/usr/bin/ec-bootstrap-templ
 sudo ln -sf "$VENV_PATH/bin/exordos-universal-agent" "/usr/bin/exordos-universal-agent"
 sudo ln -sf "$VENV_PATH/bin/exordos-universal-agent-db-back" "/usr/bin/exordos-universal-agent-db-back"
 sudo ln -sf "$VENV_PATH/bin/exordos-universal-scheduler" "/usr/bin/exordos-universal-scheduler"
+sudo ln -sf "$VENV_PATH/bin/exordos-repo-proxy-gservice" "/usr/bin/exordos-repo-proxy-gservice"
 
 # Install Systemd service files
 # The exordos services are enabled in the bootstrap
@@ -204,6 +205,7 @@ sudo cp "$GC_PATH/etc/systemd/ec-gservice.service" $SYSTEMD_SERVICE_DIR
 sudo cp "$GC_PATH/etc/systemd/ec-core-agent.service" $SYSTEMD_SERVICE_DIR
 sudo cp "$GC_PATH/etc/systemd/exordos-universal-agent.service" $SYSTEMD_SERVICE_DIR
 sudo cp "$GC_PATH/etc/systemd/exordos-universal-scheduler.service" $SYSTEMD_SERVICE_DIR
+sudo cp "$GC_PATH/etc/systemd/exordos-repo-proxy-gservice.service" $SYSTEMD_SERVICE_DIR
 
 # Prepare DNSaaS
 sudo systemctl disable --now pdns dnsdist@public dnsdist@private