[PATCH datacenter-manager v2 7/7] api: rename PROXMOX_DEBUG log variable to PDM_LOG

[Thomas Ellmenreich <t.ellmenreich@proxmox.com>]

Update the variable used to set the log level for the privileged and
unprivileged datacenter-api. The old 'PROXMOX_DEBUG' variable is replaced by
'PDM_LOG' to match the pattern used by other products.

In the case that PROXMOX_DEBUG is still set, a warning will be emitted,
notifying the user that the environment variable is no longer in use.

Suggested-by: Lukas Wagner <l.wagner@proxmox.com>
Signed-off-by: Thomas Ellmenreich <t.ellmenreich@proxmox.com>
---
 server/src/bin/proxmox-datacenter-api/main.rs       | 7 ++++++-
 server/src/bin/proxmox-datacenter-privileged-api.rs | 9 ++++++++-
 2 files changed, 14 insertions(+), 2 deletions(-)

diff --git a/server/src/bin/proxmox-datacenter-api/main.rs b/server/src/bin/proxmox-datacenter-api/main.rs
index 1c107b1f..9d04ba91 100644
--- a/server/src/bin/proxmox-datacenter-api/main.rs
+++ b/server/src/bin/proxmox-datacenter-api/main.rs
@@ -47,11 +47,16 @@ fn main() -> Result<(), Error> {
 
     server::env::sanitize_environment_vars();
 
-    proxmox_log::Logger::from_env("PROXMOX_DEBUG", LevelFilter::INFO)
+    proxmox_log::Logger::from_env("PDM_LOG", LevelFilter::INFO)
         .journald_on_no_workertask()
         .tasklog_pbs()
         .init()?;
 
+    // TODO: remove after a few versions
+    if std::env::var("PROXMOX_DEBUG").is_ok() {
+        proxmox_log::warn!("PROXMOX_DEBUG is deprecated, please use PDM_LOG instead");
+    }
+
     if std::env::args().nth(1).is_some() {
         bail!("unexpected command line parameters");
     }
diff --git a/server/src/bin/proxmox-datacenter-privileged-api.rs b/server/src/bin/proxmox-datacenter-privileged-api.rs
index 616d9e14..3ead7eb9 100644
--- a/server/src/bin/proxmox-datacenter-privileged-api.rs
+++ b/server/src/bin/proxmox-datacenter-privileged-api.rs
@@ -27,11 +27,18 @@ fn main() -> Result<(), Error> {
 
     server::env::sanitize_environment_vars();
 
-    proxmox_log::Logger::from_env("PROXMOX_DEBUG", LevelFilter::INFO)
+    proxmox_log::Logger::from_env("PDM_LOG", LevelFilter::INFO)
         .journald_on_no_workertask()
         .tasklog_pbs()
         .init()?;
 
+    // TODO: remove after a few versions
+    if std::env::var("PROXMOX_DEBUG").is_ok() {
+        proxmox_log::warn!(
+            "to set the log level, please use the PDM_LOG variable, as it has replaced PROXMOX_DEBUG"
+        );
+    }
+
     proxmox_product_config::init(pdm_config::api_user()?, pdm_config::priv_user()?);
 
     create_directories()?;
-- 
2.47.3