DevOps et Site Reliability Engineering (SRE)
Le DevOps s'inscrit dans la culture d'entreprise comme un ensemble de principes qu'une entreprise aspire et respecte à long terme. Les partisans de cette culture valorisent la collaboration, l’expérimentation et la volonté d’apprendre. Toutes les parties impliquées dans une culture DevOps se concentrent sur un objectif tout au long du cycle de vie d'un projet (pas seulement le développement et l'exploitation): la mise en œuvre rapide de logiciels stables et de haute qualité, du concept client jusqu'à l'expérience utilisateur.
L'automatisation du développement, des tests et du déploiement de logiciels par le biais du déploiement continue (CD) est un facteur clé reconnu de la méthodologie DevOps. L'automatisation permet une mise en œuvre logicielle plus rapide et garantit à la solution finale qualité, sécurité et stabilité.
Objectifs
Définition et contribution:
- Indicateur de niveau de service (SLI)
- Objectif de niveau de service (SLO)
- Service Level Agreements (SLA)
- Estimation des risques, des niveaux de disponibilité et du budget d'erreur
Collaboration
Expertise auprès des développeurs d'applications:
- Gestion du changement
- Définir des objectifs communs
- Assurer la livraison de la production
- Améliorer la fiabilité du système
Responsabilités
Implication et responsibilisation:
- Surveillance et notifications
- Estimation des capacités allouées
- Latence, performance et efficacité
- Réponse d'urgence et automatisation
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