Struct RenewalPolicy 

pub struct RenewalPolicy {
    pub renew_before: Duration,
    pub retry_interval: Duration,
}

When renewal is attempted, and how often a failing attempt retries.

Fields

renew_before: Duration

How long before expiry a healthy renewal cycle starts trying.

Let’s Encrypt suggests renewing at a third of a certificate’s lifetime remaining; for a 90-day certificate that is 30 days, which is also comfortably longer than the retry ceiling below, so a renewal that fails immediately still gets many attempts before expiry.

retry_interval: Duration

How long to wait between retries once renewal is due and failing.

Not exponential backoff: ACME rate limits key off account and order creation frequency, not raw request count, and a failure here is far more likely to be “the DNS credential rotated” or “the zone stopped answering” than transient CA load — the kind of failure a human fixes on their own schedule, not one that clears itself if retried faster.

Trait Implementations

impl Clone for RenewalPolicy

fn clone(&self) -> RenewalPolicy

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for RenewalPolicy

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Default for RenewalPolicy

fn default() -> Self

Returns the “default value” for a type.

impl Copy for RenewalPolicy