#!/bin/bash
# Enterprise bind mount management script

class BindMountManager {
    private:
        std::vector<std::string> active_mounts;
        std::string audit_log_path;
        
    public:
        bool create_secure_bind_mount(const std::string& source, 
                                    const std::string& target,
                                    const MountOptions& options) {
            // Validate source exists and is accessible
            if (!filesystem_security_validator.validate_path(source)) {
                audit_logger.log_security_violation("Invalid bind mount source", source);
                return false;
            }
            
            // Create target directory with proper permissions
            std::filesystem::create_directories(target);
            std::filesystem::permissions(target, options.permissions);
            
            // Execute bind mount with security flags
            std::string mount_cmd = format_mount_command(source, target, options);
            int result = execute_with_capabilities(mount_cmd, CAP_SYS_ADMIN);
            
            if (result == 0) {
                active_mounts.push_back(target);
                audit_logger.log_mount_event("bind_mount_created", source, target);
                return true;
            }
            
            return false;
        }
        
        bool unmount_all_in_namespace(const std::string& namespace_id) {
            for (const auto& mount : active_mounts) {
                if (is_in_namespace(mount, namespace_id)) {
                    lazy_unmount(mount);
                }
            }
            return true;
        }
};

# Production bind mount with security hardening
create_enterprise_bind_mount() {
    local source="$1"
    local target="$2"
    local options="$3"
    
    # Validate inputs
    [[ -d "$source" ]] || { log_error "Source directory does not exist: $source"; return 1; }
    
    # Create target with restricted permissions
    mkdir -p "$target"
    chmod 750 "$target"
    
    # Apply SELinux context if enabled
    if selinux_enabled; then
        chcon --reference="$source" "$target"
    fi
    
    # Create bind mount with security options
    mount --bind \
          --make-private \
          -o nosuid,nodev,noexec \
          "$source" "$target"
    
    # Verify mount was successful
    if mountpoint -q "$target"; then
        log_info "Bind mount created: $source -> $target"
        echo "$target" >> /var/log/enterprise-mounts.log
        return 0
    else
        log_error "Failed to create bind mount: $source -> $target"
        return 1
    fi
}

# Enterprise mount monitoring
monitor_bind_mounts() {
    while IFS= read -r mount_point; do
        if ! mountpoint -q "$mount_point"; then
            alert_manager.send_alert("bind_mount_failure", {
                "mount_point": "$mount_point",
                "timestamp": "$(date -Iseconds)",
                "severity": "critical"
            })
        fi
    done < /var/log/enterprise-mounts.log
}

// Enterprise filesystem management in Go
package filesystem

import (
    "context"
    "fmt"
    "os"
    "path/filepath"
    "syscall"
    "time"
    
    "golang.org/x/sys/unix"
)

type EnterpriseFilesystemManager struct {
    auditLogger    *AuditLogger
    metricsClient  *MetricsClient
    quotaManager   *QuotaManager
    snapshotMgr    *SnapshotManager
}

// Advanced XFS quota management
func (efm *EnterpriseFilesystemManager) ConfigureXFSQuotas(
    mountPoint string, 
    userQuotas map[uint32]QuotaLimits,
    groupQuotas map[uint32]QuotaLimits) error {
    
    ctx, cancel := context.WithTimeout(context.Background(), 30*time.Second)
    defer cancel()
    
    // Enable quota accounting
    if err := efm.enableQuotaAccounting(mountPoint); err != nil {
        return fmt.Errorf("failed to enable quota accounting: %w", err)
    }
    
    // Configure user quotas
    for uid, limits := range userQuotas {
        quota := unix.Dqblk{
            Bhardlimit: limits.BlockHardLimit,
            Bsoftlimit: limits.BlockSoftLimit,
            Ihardlimit: limits.InodeHardLimit,
            Isoftlimit: limits.InodeSoftLimit,
            Btime:      uint64(limits.BlockGracePeriod.Unix()),
            Itime:      uint64(limits.InodeGracePeriod.Unix()),
        }
        
        if err := unix.Quotactl(unix.QCMD(unix.Q_SETQUOTA, unix.USRQUOTA),
                               mountPoint, int(uid), (*byte)(&quota)); err != nil {
            efm.auditLogger.LogQuotaError("user_quota_set_failed", uid, err)
            return err
        }
        
        efm.metricsClient.RecordQuotaConfiguration("user", uid, limits)
    }
    
    // Configure group quotas
    for gid, limits := range groupQuotas {
        quota := unix.Dqblk{
            Bhardlimit: limits.BlockHardLimit,
            Bsoftlimit: limits.BlockSoftLimit,
            Ihardlimit: limits.InodeHardLimit,
            Isoftlimit: limits.InodeSoftLimit,
        }
        
        if err := unix.Quotactl(unix.QCMD(unix.Q_SETQUOTA, unix.GRPQUOTA),
                               mountPoint, int(gid), (*byte)(&quota)); err != nil {
            return err
        }
    }
    
    efm.auditLogger.LogQuotaConfiguration(mountPoint, userQuotas, groupQuotas)
    return nil
}

// Enterprise snapshot management with CoW filesystems
func (efm *EnterpriseFilesystemManager) CreateEnterpriseSnapshot(
    sourcePath string, 
    snapshotName string,
    metadata SnapshotMetadata) (*Snapshot, error) {
    
    // Detect filesystem type
    fsType, err := efm.detectFilesystemType(sourcePath)
    if err != nil {
        return nil, err
    }
    
    var snapshot *Snapshot
    
    switch fsType {
    case "btrfs":
        snapshot, err = efm.createBtrfsSnapshot(sourcePath, snapshotName, metadata)
    case "zfs":
        snapshot, err = efm.createZfsSnapshot(sourcePath, snapshotName, metadata)
    case "xfs":
        snapshot, err = efm.createXfsReflink(sourcePath, snapshotName, metadata)
    default:
        return nil, fmt.Errorf("unsupported filesystem for snapshots: %s", fsType)
    }
    
    if err != nil {
        efm.auditLogger.LogSnapshotError("snapshot_creation_failed", sourcePath, err)
        return nil, err
    }
    
    // Register snapshot for monitoring
    efm.snapshotMgr.RegisterSnapshot(snapshot)
    efm.metricsClient.RecordSnapshotCreated(snapshot.Name, snapshot.Size)
    
    return snapshot, nil
}

type QuotaLimits struct {
    BlockHardLimit    uint64
    BlockSoftLimit    uint64
    InodeHardLimit    uint64
    InodeSoftLimit    uint64
    BlockGracePeriod  time.Duration
    InodeGracePeriod  time.Duration
}

type SnapshotMetadata struct {
    Purpose     string
    Retention   time.Duration
    Tags        map[string]string
    Encrypted   bool
    Compressed  bool
}

// Advanced namespace management in C
#define _GNU_SOURCE
#include <sched.h>
#include <sys/wait.h>
#include <sys/mount.h>
#include <sys/syscall.h>
#include <linux/sched.h>

struct enterprise_namespace_config {
    unsigned long clone_flags;
    char *hostname;
    char *domainname;
    uid_t uid_map_start;
    uid_t uid_map_length;
    gid_t gid_map_start;
    gid_t gid_map_length;
    char *root_dir;
    char **bind_mounts;
    size_t bind_mount_count;
    int security_level;
};

// Create enterprise namespace with security hardening
int create_enterprise_namespace(struct enterprise_namespace_config *config) {
    pid_t child_pid;
    int pipe_fd[2];
    char map_buf[256];
    
    // Create communication pipe
    if (pipe(pipe_fd) == -1) {
        perror("pipe");
        return -1;
    }
    
    // Configure clone flags for maximum isolation
    unsigned long clone_flags = CLONE_NEWUSER | CLONE_NEWPID | CLONE_NEWNS |
                               CLONE_NEWUTS | CLONE_NEWIPC | CLONE_NEWNET |
                               CLONE_NEWCGROUP;
    
    if (config->security_level >= SECURITY_LEVEL_HIGH) {
        clone_flags |= CLONE_NEWTIME;  // Time namespace isolation
    }
    
    child_pid = clone(enterprise_namespace_child, 
                      malloc(4096) + 4096,  // Stack for child
                      clone_flags | SIGCHLD,
                      config);
    
    if (child_pid == -1) {
        perror("clone");
        return -1;
    }
    
    // Configure user namespace mappings
    configure_user_namespace_mappings(child_pid, config);
    
    // Signal child to continue
    close(pipe_fd[1]);
    if (write(pipe_fd[1], "continue", 8) != 8) {
        perror("write to pipe");
        return -1;
    }
    
    return child_pid;
}

// Child process in new namespace
int enterprise_namespace_child(void *arg) {
    struct enterprise_namespace_config *config = arg;
    char buf[64];
    int pipe_fd[2] = {3, 4};  // Assuming inherited pipe
    
    // Wait for parent to configure user namespace
    if (read(pipe_fd[0], buf, sizeof(buf)) == -1) {
        perror("read from pipe");
        return -1;
    }
    close(pipe_fd[0]);
    
    // Configure hostname and domain
    if (sethostname(config->hostname, strlen(config->hostname)) == -1) {
        perror("sethostname");
        return -1;
    }
    
    if (setdomainname(config->domainname, strlen(config->domainname)) == -1) {
        perror("setdomainname");
        return -1;
    }
    
    // Setup new root filesystem
    if (setup_enterprise_rootfs(config) == -1) {
        return -1;
    }
    
    // Apply security restrictions
    apply_namespace_security_restrictions(config);
    
    // Execute target process
    char *const argv[] = {"/bin/bash", NULL};
    char *const envp[] = {NULL};
    
    execve("/bin/bash", argv, envp);
    perror("execve");
    return -1;
}

// Configure user namespace ID mappings
int configure_user_namespace_mappings(pid_t child_pid, 
                                     struct enterprise_namespace_config *config) {
    char map_path[256];
    char map_content[256];
    int fd;
    
    // Configure UID mapping
    snprintf(map_path, sizeof(map_path), "/proc/%d/uid_map", child_pid);
    snprintf(map_content, sizeof(map_content), "%d %d %d\n",
             0, config->uid_map_start, config->uid_map_length);
    
    fd = open(map_path, O_WRONLY);
    if (fd == -1) {
        perror("open uid_map");
        return -1;
    }
    
    if (write(fd, map_content, strlen(map_content)) == -1) {
        perror("write uid_map");
        close(fd);
        return -1;
    }
    close(fd);
    
    // Deny setgroups for security
    snprintf(map_path, sizeof(map_path), "/proc/%d/setgroups", child_pid);
    fd = open(map_path, O_WRONLY);
    if (fd != -1) {
        write(fd, "deny", 4);
        close(fd);
    }
    
    // Configure GID mapping
    snprintf(map_path, sizeof(map_path), "/proc/%d/gid_map", child_pid);
    snprintf(map_content, sizeof(map_content), "%d %d %d\n",
             0, config->gid_map_start, config->gid_map_length);
    
    fd = open(map_path, O_WRONLY);
    if (fd == -1) {
        perror("open gid_map");
        return -1;
    }
    
    if (write(fd, map_content, strlen(map_content)) == -1) {
        perror("write gid_map");
        close(fd);
        return -1;
    }
    close(fd);
    
    return 0;
}

// Advanced cgroup v2 integration
int setup_enterprise_cgroups_v2(pid_t pid, struct resource_limits *limits) {
    char cgroup_path[512];
    char value_buf[64];
    int fd;
    
    // Create dedicated cgroup for the namespace
    snprintf(cgroup_path, sizeof(cgroup_path), 
             "/sys/fs/cgroup/enterprise-namespace-%d", pid);
    
    if (mkdir(cgroup_path, 0755) == -1 && errno != EEXIST) {
        perror("mkdir cgroup");
        return -1;
    }
    
    // Configure memory limits
    snprintf(cgroup_path, sizeof(cgroup_path),
             "/sys/fs/cgroup/enterprise-namespace-%d/memory.max", pid);
    fd = open(cgroup_path, O_WRONLY);
    if (fd != -1) {
        snprintf(value_buf, sizeof(value_buf), "%ld", limits->memory_max);
        write(fd, value_buf, strlen(value_buf));
        close(fd);
    }
    
    // Configure CPU limits
    snprintf(cgroup_path, sizeof(cgroup_path),
             "/sys/fs/cgroup/enterprise-namespace-%d/cpu.max", pid);
    fd = open(cgroup_path, O_WRONLY);
    if (fd != -1) {
        snprintf(value_buf, sizeof(value_buf), "%ld %ld", 
                 limits->cpu_quota, limits->cpu_period);
        write(fd, value_buf, strlen(value_buf));
        close(fd);
    }
    
    // Add process to cgroup
    snprintf(cgroup_path, sizeof(cgroup_path),
             "/sys/fs/cgroup/enterprise-namespace-%d/cgroup.procs", pid);
    fd = open(cgroup_path, O_WRONLY);
    if (fd != -1) {
        snprintf(value_buf, sizeof(value_buf), "%d", pid);
        write(fd, value_buf, strlen(value_buf));
        close(fd);
    }
    
    return 0;
}

// Enterprise namespace management in Go
package namespace

import (
    "fmt"
    "os"
    "os/exec"
    "path/filepath"
    "strconv"
    "syscall"
    "time"
    
    "github.com/containerd/cgroups/v3"
    "github.com/opencontainers/runc/libcontainer"
    "github.com/opencontainers/runc/libcontainer/configs"
)

type EnterpriseNamespaceManager struct {
    auditLogger     *AuditLogger
    resourceMonitor *ResourceMonitor
    securityPolicy  *SecurityPolicy
    cgroupManager   cgroups.Manager
}

type NamespaceConfig struct {
    ID              string
    Hostname        string
    DomainName      string
    RootFS          string
    UserMapping     []configs.IDMap
    GroupMapping    []configs.IDMap
    BindMounts      []BindMount
    NetworkConfig   *NetworkConfig
    ResourceLimits  *ResourceLimits
    SecurityOptions *SecurityOptions
}

type SecurityOptions struct {
    NoNewPrivileges bool
    Seccomp         *configs.Seccomp
    AppArmor        string
    SELinux         string
    Capabilities    []string
    ReadonlyPaths   []string
    MaskedPaths     []string
}

// Create enterprise namespace with comprehensive security
func (enm *EnterpriseNamespaceManager) CreateEnterpriseNamespace(
    config *NamespaceConfig) (*EnterpriseNamespace, error) {
    
    // Validate configuration
    if err := enm.validateConfig(config); err != nil {
        return nil, fmt.Errorf("invalid namespace config: %w", err)
    }
    
    // Create libcontainer configuration
    containerConfig := &configs.Config{
        Rootfs:      config.RootFS,
        Hostname:    config.Hostname,
        Domainname:  config.DomainName,
        UidMappings: config.UserMapping,
        GidMappings: config.GroupMapping,
        Namespaces: []configs.Namespace{
            {Type: configs.NEWNS},
            {Type: configs.NEWUTS},
            {Type: configs.NEWIPC},
            {Type: configs.NEWPID},
            {Type: configs.NEWNET},
            {Type: configs.NEWUSER},
            {Type: configs.NEWCGROUP},
            {Type: configs.NEWTIME}, // For time namespace isolation
        },
        Capabilities: enm.buildCapabilities(config.SecurityOptions),
        Networks:     enm.buildNetworkConfigs(config.NetworkConfig),
        Routes:       enm.buildRoutes(config.NetworkConfig),
    }
    
    // Configure cgroups v2
    if err := enm.configureCgroupsV2(containerConfig, config.ResourceLimits); err != nil {
        return nil, fmt.Errorf("failed to configure cgroups: %w", err)
    }
    
    // Configure security options
    enm.applySecurityOptions(containerConfig, config.SecurityOptions)
    
    // Configure bind mounts with security validation
    for _, mount := range config.BindMounts {
        if err := enm.validateBindMount(mount); err != nil {
            return nil, fmt.Errorf("invalid bind mount %s: %w", mount.Source, err)
        }
        
        containerConfig.Mounts = append(containerConfig.Mounts, &configs.Mount{
            Source:      mount.Source,
            Destination: mount.Destination,
            Device:      "bind",
            Flags:       mount.Flags | syscall.MS_BIND,
            Data:        mount.Data,
        })
    }
    
    // Create container factory
    factory, err := libcontainer.New("/var/lib/enterprise-containers",
        libcontainer.Cgroupfs,
        libcontainer.InitArgs(os.Args[0], "enterprise-init"))
    if err != nil {
        return nil, fmt.Errorf("failed to create container factory: %w", err)
    }
    
    // Create container
    container, err := factory.Create(config.ID, containerConfig)
    if err != nil {
        return nil, fmt.Errorf("failed to create container: %w", err)
    }
    
    // Create enterprise namespace wrapper
    namespace := &EnterpriseNamespace{
        ID:          config.ID,
        Container:   container,
        Config:      config,
        CreatedAt:   time.Now(),
        auditLogger: enm.auditLogger,
        monitor:     enm.resourceMonitor,
    }
    
    // Start monitoring
    go namespace.startResourceMonitoring()
    
    enm.auditLogger.LogNamespaceCreated(config.ID, config)
    return namespace, nil
}

// Configure cgroups v2 with enterprise resource management
func (enm *EnterpriseNamespaceManager) configureCgroupsV2(
    config *configs.Config, 
    limits *ResourceLimits) error {
    
    if limits == nil {
        return nil
    }
    
    // Memory configuration
    config.Cgroups.Resources.Memory = limits.Memory
    config.Cgroups.Resources.MemorySwap = limits.MemorySwap
    config.Cgroups.Resources.KernelMemory = limits.KernelMemory
    
    // CPU configuration
    config.Cgroups.Resources.CpuQuota = limits.CPUQuota
    config.Cgroups.Resources.CpuPeriod = limits.CPUPeriod
    config.Cgroups.Resources.CpuShares = limits.CPUShares
    config.Cgroups.Resources.CpusetCpus = limits.CPUSet
    
    // I/O configuration
    config.Cgroups.Resources.BlkioWeight = limits.BlkIOWeight
    config.Cgroups.Resources.BlkioDeviceReadBps = limits.BlkIOReadBps
    config.Cgroups.Resources.BlkioDeviceWriteBps = limits.BlkIOWriteBps
    
    // Network configuration
    config.Cgroups.Resources.NetClsClassid = limits.NetClsClassID
    config.Cgroups.Resources.NetPrioIfpriomap = limits.NetPrioMap
    
    // PID limits
    config.Cgroups.Resources.PidsLimit = limits.PidsLimit
    
    return nil
}

// Enterprise namespace with monitoring and lifecycle management
type EnterpriseNamespace struct {
    ID          string
    Container   libcontainer.Container
    Config      *NamespaceConfig
    CreatedAt   time.Time
    Status      NamespaceStatus
    auditLogger *AuditLogger
    monitor     *ResourceMonitor
    
    // Runtime metrics
    metrics struct {
        CPUUsage    float64
        MemoryUsage int64
        NetworkIO   NetworkStats
        DiskIO      DiskStats
    }
}

// Start the namespace with enterprise monitoring
func (en *EnterpriseNamespace) Start(process *configs.Process) error {
    // Validate process configuration
    if err := en.validateProcess(process); err != nil {
        return fmt.Errorf("invalid process config: %w", err)
    }
    
    // Apply additional security restrictions
    en.applyRuntimeSecurity(process)
    
    // Start the container process
    if err := en.Container.Start(process); err != nil {
        en.auditLogger.LogNamespaceStartFailed(en.ID, err)
        return fmt.Errorf("failed to start namespace process: %w", err)
    }
    
    en.Status = StatusRunning
    en.auditLogger.LogNamespaceStarted(en.ID)
    
    // Start health monitoring
    go en.startHealthMonitoring()
    
    return nil
}

// Resource monitoring for enterprise namespaces
func (en *EnterpriseNamespace) startResourceMonitoring() {
    ticker := time.NewTicker(10 * time.Second)
    defer ticker.Stop()
    
    for {
        select {
        case <-ticker.C:
            stats, err := en.Container.Stats()
            if err != nil {
                en.auditLogger.LogMonitoringError(en.ID, err)
                continue
            }
            
            // Update metrics
            en.metrics.CPUUsage = float64(stats.CgroupStats.CpuStats.CpuUsage.TotalUsage)
            en.metrics.MemoryUsage = int64(stats.CgroupStats.MemoryStats.Usage.Usage)
            
            // Check for resource violations
            if en.checkResourceViolations(stats) {
                en.handleResourceViolation(stats)
            }
            
            // Send metrics to monitoring system
            en.monitor.RecordNamespaceMetrics(en.ID, stats)
            
        case <-en.Container.Done():
            return
        }
    }
}

// Health monitoring with automatic recovery
func (en *EnterpriseNamespace) startHealthMonitoring() {
    ticker := time.NewTicker(30 * time.Second)
    defer ticker.Stop()
    
    for {
        select {
        case <-ticker.C:
            if err := en.performHealthCheck(); err != nil {
                en.auditLogger.LogHealthCheckFailed(en.ID, err)
                
                // Attempt automatic recovery
                if en.Config.AutoRecover {
                    if err := en.attemptRecovery(); err != nil {
                        en.auditLogger.LogRecoveryFailed(en.ID, err)
                    }
                }
            }
            
        case <-en.Container.Done():
            return
        }
    }
}

type NamespaceStatus int

const (
    StatusCreated NamespaceStatus = iota
    StatusRunning
    StatusStopped
    StatusFailed
    StatusRecovering
)

type ResourceLimits struct {
    Memory          int64
    MemorySwap      int64
    KernelMemory    int64
    CPUQuota        int64
    CPUPeriod       uint64
    CPUShares       uint64
    CPUSet          string
    BlkIOWeight     uint16
    BlkIOReadBps    []*configs.ThrottleDevice
    BlkIOWriteBps   []*configs.ThrottleDevice
    NetClsClassID   uint32
    NetPrioMap      []*configs.IfPrioMap
    PidsLimit       int64
}

#!/bin/bash
# Enterprise SELinux policy management

# Custom SELinux policy for enterprise applications
create_enterprise_selinux_policy() {
    local app_name="$1"
    local policy_dir="/etc/selinux/local/enterprise"
    
    mkdir -p "$policy_dir"
    
    # Create type enforcement file
    cat > "$policy_dir/${app_name}.te" << EOF
module ${app_name} 1.0;

require {
    type unconfined_t;
    type user_home_t;
    type httpd_t;
    type httpd_exec_t;
    type var_log_t;
    type var_lib_t;
    class file { read write create unlink };
    class dir { search add_name remove_name };
    class process { transition };
}

# Define custom types for the application
type ${app_name}_t;
type ${app_name}_exec_t;
type ${app_name}_log_t;
type ${app_name}_var_lib_t;

# File contexts
files_type(${app_name}_exec_t)
logging_log_file(${app_name}_log_t)
files_type(${app_name}_var_lib_t)

# Domain transition
domain_type(${app_name}_t)
domain_entry_file(${app_name}_t, ${app_name}_exec_t)

# Allow domain transition from unconfined_t
allow unconfined_t ${app_name}_exec_t:file { read execute };
allow unconfined_t ${app_name}_t:process transition;

# Application permissions
allow ${app_name}_t ${app_name}_exec_t:file execute;
allow ${app_name}_t ${app_name}_log_t:file { create write append };
allow ${app_name}_t ${app_name}_var_lib_t:file { read write create unlink };
allow ${app_name}_t ${app_name}_var_lib_t:dir { search add_name remove_name };

# Network permissions for enterprise apps
allow ${app_name}_t self:tcp_socket { create connect listen accept };
allow ${app_name}_t self:udp_socket { create connect };

# Enterprise security constraints
constrain file { read write } (
    u1 == u2 or 
    (r1 == enterprise_admin_r and r2 == enterprise_user_r)
);
EOF

    # Create file contexts
    cat > "$policy_dir/${app_name}.fc" << EOF
/opt/${app_name}/bin/${app_name}    --  gen_context(system_u:object_r:${app_name}_exec_t,s0)
/opt/${app_name}/lib(/.*)?              gen_context(system_u:object_r:${app_name}_var_lib_t,s0)
/var/log/${app_name}(/.*)?              gen_context(system_u:object_r:${app_name}_log_t,s0)
EOF

    # Compile and install policy
    cd "$policy_dir"
    make -f /usr/share/selinux/devel/Makefile ${app_name}.pp
    semodule -i ${app_name}.pp
    
    # Apply file contexts
    restorecon -R /opt/${app_name}
    restorecon -R /var/log/${app_name}
    
    log_info "SELinux policy created and installed for $app_name"
}

# Enterprise audit log analysis
analyze_selinux_denials() {
    local log_file="/var/log/audit/audit.log"
    local output_dir="/var/log/selinux-analysis"
    local date_filter="$(date '+%Y-%m-%d')"
    
    mkdir -p "$output_dir"
    
    # Extract today's denials
    ausearch -m avc -ts today | audit2allow -a > "$output_dir/denials-${date_filter}.log"
    
    # Generate policy suggestions
    ausearch -m avc -ts today | audit2allow -M enterprise-policy-$(date +%s)
    
    # Analyze denial patterns
    python3 << 'EOF'
import re
import json
from collections import defaultdict
import sys

denial_patterns = defaultdict(int)
source_contexts = defaultdict(int)
target_contexts = defaultdict(int)

with open('/var/log/audit/audit.log', 'r') as f:
    for line in f:
        if 'avc:  denied' in line and '$(date '+%Y-%m-%d')' in line:
            # Extract source and target contexts
            scontext_match = re.search(r'scontext=([^\\s]+)', line)
            tcontext_match = re.search(r'tcontext=([^\\s]+)', line)
            
            if scontext_match and tcontext_match:
                scontext = scontext_match.group(1)
                tcontext = tcontext_match.group(1)
                
                source_contexts[scontext] += 1
                target_contexts[tcontext] += 1
                
                pattern = f"{scontext} -> {tcontext}"
                denial_patterns[pattern] += 1

# Generate report
report = {
    'date': '$(date '+%Y-%m-%d')',
    'total_denials': sum(denial_patterns.values()),
    'top_denial_patterns': dict(sorted(denial_patterns.items(), 
                                     key=lambda x: x[1], reverse=True)[:10]),
    'top_source_contexts': dict(sorted(source_contexts.items(), 
                                     key=lambda x: x[1], reverse=True)[:10]),
    'top_target_contexts': dict(sorted(target_contexts.items(), 
                                     key=lambda x: x[1], reverse=True)[:10])
}

with open('/var/log/selinux-analysis/analysis-$(date +%Y-%m-%d).json', 'w') as f:
    json.dump(report, f, indent=2)

print(f"Analysis complete. Found {report['total_denials']} denials.")
EOF
}

# Advanced AppArmor profile generation
generate_enterprise_apparmor_profile() {
    local app_name="$1"
    local app_path="$2"
    local profile_path="/etc/apparmor.d/${app_name}"
    
    cat > "$profile_path" << EOF
#include <tunables/global>

${app_path} {
  #include <abstractions/base>
  #include <abstractions/nameservice>
  #include <abstractions/openssl>
  #include <abstractions/ssl_certs>
  
  # Enterprise capabilities
  capability net_bind_service,
  capability setuid,
  capability setgid,
  capability dac_override,
  capability sys_resource,
  
  # Network access
  network tcp,
  network udp,
  
  # File system access
  /opt/${app_name}/** r,
  /opt/${app_name}/bin/${app_name} ix,
  /opt/${app_name}/lib/** mr,
  /opt/${app_name}/etc/** r,
  
  # Logs and data
  /var/log/${app_name}/** rw,
  /var/lib/${app_name}/** rw,
  /tmp/${app_name}_* rw,
  
  # System libraries
  /lib/x86_64-linux-gnu/** mr,
  /usr/lib/x86_64-linux-gnu/** mr,
  
  # Proc and sys access (limited)
  @{PROC}/sys/kernel/random/uuid r,
  @{PROC}/meminfo r,
  @{PROC}/cpuinfo r,
  
  # Deny dangerous operations
  deny /etc/shadow r,
  deny /etc/passwd w,
  deny /etc/group w,
  deny /proc/*/mem rw,
  deny /sys/kernel/security/** rw,
  
  # Enterprise-specific rules
  owner /home/*/.${app_name}/** rw,
  /etc/${app_name}/** r,
  
  # Signal handling
  signal receive set=(term, kill, usr1, usr2),
  signal send set=(term, kill) peer=${app_name},
}
EOF

    # Load the profile
    apparmor_parser -r "$profile_path"
    
    # Enable enforcement
    aa-enforce "$profile_path"
    
    log_info "AppArmor profile created and enforced for $app_name"
}

# Advanced RBAC for enterprise Kubernetes
apiVersion: v1
kind: Namespace
metadata:
  name: enterprise-production
  labels:
    security-tier: "high"
    compliance: "sox-pci"
    environment: "production"
  annotations:
    security.enterprise.com/network-policy: "strict"
    security.enterprise.com/pod-security: "restricted"
---
apiVersion: rbac.authorization.k8s.io/v1
kind: ClusterRole
metadata:
  name: enterprise-admin
  labels:
    rbac.enterprise.com/role-type: "administrative"
rules:
# Full access to enterprise namespaces
- apiGroups: [""]
  resources: ["*"]
  verbs: ["*"]
  resourceNames: []
# Restricted cluster-level operations
- apiGroups: ["rbac.authorization.k8s.io"]
  resources: ["clusterroles", "clusterrolebindings"]
  verbs: ["get", "list", "watch"]
- apiGroups: ["storage.k8s.io"]
  resources: ["storageclasses"]
  verbs: ["get", "list", "watch", "create", "update", "patch"]
# Custom resource management
- apiGroups: ["enterprise.com"]
  resources: ["enterpriseconfigs", "securitypolicies"]
  verbs: ["*"]
---
apiVersion: rbac.authorization.k8s.io/v1
kind: ClusterRole
metadata:
  name: enterprise-developer
  labels:
    rbac.enterprise.com/role-type: "development"
rules:
# Application management in designated namespaces
- apiGroups: ["apps"]
  resources: ["deployments", "replicasets", "daemonsets"]
  verbs: ["get", "list", "watch", "create", "update", "patch", "delete"]
- apiGroups: [""]
  resources: ["pods", "pods/log", "pods/exec"]
  verbs: ["get", "list", "watch", "create", "delete"]
- apiGroups: [""]
  resources: ["configmaps", "secrets"]
  verbs: ["get", "list", "watch", "create", "update", "patch", "delete"]
  resourceNames: ["app-*", "config-*"]  # Only app-specific resources
# Service mesh integration
- apiGroups: ["networking.istio.io"]
  resources: ["virtualservices", "destinationrules"]
  verbs: ["get", "list", "watch", "create", "update", "patch", "delete"]
# Monitoring access
- apiGroups: ["monitoring.coreos.com"]
  resources: ["servicemonitors", "prometheusrules"]
  verbs: ["get", "list", "watch", "create", "update", "patch", "delete"]
---
apiVersion: rbac.authorization.k8s.io/v1
kind: ClusterRole
metadata:
  name: enterprise-auditor
  labels:
    rbac.enterprise.com/role-type: "compliance"
rules:
# Read-only access for compliance auditing
- apiGroups: [""]
  resources: ["*"]
  verbs: ["get", "list", "watch"]
- apiGroups: ["apps", "extensions", "networking.k8s.io"]
  resources: ["*"]
  verbs: ["get", "list", "watch"]
- apiGroups: ["rbac.authorization.k8s.io"]
  resources: ["*"]
  verbs: ["get", "list", "watch"]
# Audit log access
- apiGroups: ["audit.k8s.io"]
  resources: ["events"]
  verbs: ["get", "list", "watch"]
# Security policy review
- apiGroups: ["security.openshift.io", "policy"]
  resources: ["*"]
  verbs: ["get", "list", "watch"]
---
# Advanced RBAC with attribute-based access control
apiVersion: rbac.authorization.k8s.io/v1
kind: ClusterRole
metadata:
  name: enterprise-service-account-manager
rules:
- apiGroups: [""]
  resources: ["serviceaccounts"]
  verbs: ["get", "list", "watch", "create", "update", "patch", "delete"]
  resourceNames: ["enterprise-*"]  # Only enterprise service accounts
- apiGroups: [""]
  resources: ["serviceaccounts/token"]
  verbs: ["create"]
  resourceNames: ["enterprise-*"]
# OIDC token management
- apiGroups: ["authentication.k8s.io"]
  resources: ["tokenreviews"]
  verbs: ["create"]
- apiGroups: ["authorization.k8s.io"]  
  resources: ["subjectaccessreviews"]
  verbs: ["create"]
---
# Enterprise namespace role binding with conditions
apiVersion: rbac.authorization.k8s.io/v1
kind: RoleBinding
metadata:
  namespace: enterprise-production
  name: enterprise-admin-binding
  labels:
    environment: "production"
    security-tier: "high"
subjects:
- kind: User
  name: admin@enterprise.com
  apiGroup: rbac.authorization.k8s.io
- kind: Group
  name: enterprise-admin-group
  apiGroup: rbac.authorization.k8s.io
- kind: ServiceAccount
  name: enterprise-admin-sa
  namespace: enterprise-production
roleRef:
  kind: ClusterRole
  name: enterprise-admin
  apiGroup: rbac.authorization.k8s.io
---
# Pod Security Policy for enterprise workloads
apiVersion: policy/v1beta1
kind: PodSecurityPolicy
metadata:
  name: enterprise-restricted
  labels:
    security.enterprise.com/policy-level: "restricted"
spec:
  privileged: false
  allowPrivilegeEscalation: false
  requiredDropCapabilities:
    - ALL
  allowedCapabilities:
    - NET_BIND_SERVICE
  volumes:
    - 'configMap'
    - 'emptyDir'
    - 'projected'
    - 'secret'
    - 'downwardAPI'
    - 'persistentVolumeClaim'
  hostNetwork: false
  hostIPC: false
  hostPID: false
  runAsUser:
    rule: 'MustRunAsNonRoot'
  seLinux:
    rule: 'RunAsAny'
  seccompProfile:
    type: 'RuntimeDefault'
  fsGroup:
    rule: 'RunAsAny'
  readOnlyRootFilesystem: true
  # Resource limits enforcement
  defaultAllowPrivilegeEscalation: false
  forbiddenSysctls:
    - '*'
  allowedUnsafeSysctls: []
  # Network restrictions
  defaultAddCapabilities: []
  requiredDropCapabilities:
    - ALL
  allowedCapabilities:
    - NET_BIND_SERVICE
    - SYS_TIME  # For NTP synchronization
---
# Custom admission controller webhook
apiVersion: admissionregistration.k8s.io/v1
kind: ValidatingAdmissionWebhook
metadata:
  name: enterprise-policy-validator
webhooks:
- name: security-policy.enterprise.com
  clientConfig:
    service:
      name: enterprise-admission-webhook
      namespace: enterprise-system
      path: "/validate-security"
  rules:
  - operations: ["CREATE", "UPDATE"]
    apiGroups: [""]
    apiVersions: ["v1"]
    resources: ["pods"]
  - operations: ["CREATE", "UPDATE"]
    apiGroups: ["apps"]
    apiVersions: ["v1"]
    resources: ["deployments", "daemonsets", "statefulsets"]
  admissionReviewVersions: ["v1", "v1beta1"]
  sideEffects: None
  failurePolicy: Fail
  # Enterprise-specific admission rules
  namespaceSelector:
    matchLabels:
      security-tier: "high"